( ! ) Warning: Declaration of Jetpack_IXR_Client::query() should be compatible with IXR_Client::query(...$args) in /home/moovafri/public_html/news/wp-content/plugins/jetpack/class.jetpack-ixr-client.php on line 91
Call Stack
#TimeMemoryFunctionLocation
10.0003397032{main}( ).../index.php:0
20.0005398768require( '/home/moovafri/public_html/news/wp-blog-header.php ).../index.php:17
30.842845996384wp( $query_vars = ??? ).../wp-blog-header.php:16
40.842845996384WP->main( $query_args = '' ).../functions.php:1330
50.842845996384WP->parse_request( $extra_query_vars = '' ).../class-wp.php:770
60.843746030184do_action_ref_array( $hook_name = 'parse_request', $args = [0 => class WP { public $public_query_vars = [...]; public $private_query_vars = [...]; public $extra_query_vars = [...]; public $query_vars = [...]; public $query_string = ''; public $request = 'wp-json/wp/v2/posts/5421'; public $matched_rule = '^wp-json/(.*)?'; public $matched_query = 'rest_route=/wp%2Fv2%2Fposts%2F5421'; public $did_permalink = TRUE }] ).../class-wp.php:398
70.843746030184WP_Hook->do_action( $args = [0 => class WP { public $public_query_vars = [...]; public $private_query_vars = [...]; public $extra_query_vars = [...]; public $query_vars = [...]; public $query_string = ''; public $request = 'wp-json/wp/v2/posts/5421'; public $matched_rule = '^wp-json/(.*)?'; public $matched_query = 'rest_route=/wp%2Fv2%2Fposts%2F5421'; public $did_permalink = TRUE }] ).../plugin.php:524
80.843746030184WP_Hook->apply_filters( $value = '', $args = [0 => class WP { public $public_query_vars = [...]; public $private_query_vars = [...]; public $extra_query_vars = [...]; public $query_vars = [...]; public $query_string = ''; public $request = 'wp-json/wp/v2/posts/5421'; public $matched_rule = '^wp-json/(.*)?'; public $matched_query = 'rest_route=/wp%2Fv2%2Fposts%2F5421'; public $did_permalink = TRUE }] ).../class-wp-hook.php:331
90.843746031312rest_api_loaded( class WP { public $public_query_vars = [0 => 'm', 1 => 'p', 2 => 'posts', 3 => 'w', 4 => 'cat', 5 => 'withcomments', 6 => 'withoutcomments', 7 => 's', 8 => 'search', 9 => 'exact', 10 => 'sentence', 11 => 'calendar', 12 => 'page', 13 => 'paged', 14 => 'more', 15 => 'tb', 16 => 'pb', 17 => 'author', 18 => 'order', 19 => 'orderby', 20 => 'year', 21 => 'monthnum', 22 => 'day', 23 => 'hour', 24 => 'minute', 25 => 'second', 26 => 'name', 27 => 'category_name', 28 => 'tag', 29 => 'feed', 30 => 'author_name', 31 => 'pagename', 32 => 'page_id', 33 => 'error', 34 => 'attachment', 35 => 'attachment_id', 36 => 'subpost', 37 => 'subpost_id', 38 => 'preview', 39 => 'robots', 40 => 'favicon', 41 => 'taxonomy', 42 => 'term', 43 => 'cpage', 44 => 'post_type', 45 => 'embed', 46 => 'post_format', 47 => 'rest_route', 48 => 'sitemap', 49 => 'sitemap-subtype', 50 => 'sitemap-stylesheet']; public $private_query_vars = [0 => 'offset', 1 => 'posts_per_page', 2 => 'posts_per_archive_page', 3 => 'showposts', 4 => 'nopaging', 5 => 'post_type', 6 => 'post_status', 7 => 'category__in', 8 => 'category__not_in', 9 => 'category__and', 10 => 'tag__in', 11 => 'tag__not_in', 12 => 'tag__and', 13 => 'tag_slug__in', 14 => 'tag_slug__and', 15 => 'tag_id', 16 => 'post_mime_type', 17 => 'perm', 18 => 'comments_per_page', 19 => 'post__in', 20 => 'post__not_in', 21 => 'post_parent', 22 => 'post_parent__in', 23 => 'post_parent__not_in', 24 => 'title', 25 => 'fields']; public $extra_query_vars = []; public $query_vars = ['rest_route' => '/wp/v2/posts/5421']; public $query_string = ''; public $request = 'wp-json/wp/v2/posts/5421'; public $matched_rule = '^wp-json/(.*)?'; public $matched_query = 'rest_route=/wp%2Fv2%2Fposts%2F5421'; public $did_permalink = TRUE } ).../class-wp-hook.php:307
100.843746031336rest_get_server( ).../rest-api.php:387
110.843746034104do_action( $hook_name = 'rest_api_init', ...$arg = variadic(class WP_REST_Server { protected $namespaces = ['oembed/1.0' => [...]]; protected $endpoints = ['/' => [...], '/batch/v1' => [...], '/oembed/1.0' => [...], '/oembed/1.0/embed' => [...], '/oembed/1.0/proxy' => [...]]; protected $route_options = []; protected $embed_cache = [] }) ).../rest-api.php:561
120.843746034480WP_Hook->do_action( $args = [0 => class WP_REST_Server { protected $namespaces = [...]; protected $endpoints = [...]; protected $route_options = [...]; protected $embed_cache = [...] }] ).../plugin.php:476
130.843746034480WP_Hook->apply_filters( $value = '', $args = [0 => class WP_REST_Server { protected $namespaces = [...]; protected $endpoints = [...]; protected $route_options = [...]; protected $embed_cache = [...] }] ).../class-wp-hook.php:331
140.844346072528Jetpack_Core_Json_Api_Endpoints::register_endpoints( class WP_REST_Server { protected $namespaces = ['oembed/1.0' => [...]]; protected $endpoints = ['/' => [...], '/batch/v1' => [...], '/oembed/1.0' => [...], '/oembed/1.0/embed' => [...], '/oembed/1.0/proxy' => [...]]; protected $route_options = []; protected $embed_cache = [] } ).../class-wp-hook.php:307
150.847946360888Jetpack::load_xml_rpc_client( ).../class.core-rest-api-endpoints.php:61
( ! ) Warning: Cannot modify header information - headers already sent by (output started at /home/moovafri/public_html/news/wp-content/plugins/jetpack/class.jetpack-ixr-client.php:91) in /home/moovafri/public_html/news/wp-includes/rest-api/class-wp-rest-server.php on line 1717
Call Stack
#TimeMemoryFunctionLocation
10.0003397032{main}( ).../index.php:0
20.0005398768require( '/home/moovafri/public_html/news/wp-blog-header.php ).../index.php:17
30.842845996384wp( $query_vars = ??? ).../wp-blog-header.php:16
40.842845996384WP->main( $query_args = '' ).../functions.php:1330
50.842845996384WP->parse_request( $extra_query_vars = '' ).../class-wp.php:770
60.843746030184do_action_ref_array( $hook_name = 'parse_request', $args = [0 => class WP { public $public_query_vars = [...]; public $private_query_vars = [...]; public $extra_query_vars = [...]; public $query_vars = [...]; public $query_string = ''; public $request = 'wp-json/wp/v2/posts/5421'; public $matched_rule = '^wp-json/(.*)?'; public $matched_query = 'rest_route=/wp%2Fv2%2Fposts%2F5421'; public $did_permalink = TRUE }] ).../class-wp.php:398
70.843746030184WP_Hook->do_action( $args = [0 => class WP { public $public_query_vars = [...]; public $private_query_vars = [...]; public $extra_query_vars = [...]; public $query_vars = [...]; public $query_string = ''; public $request = 'wp-json/wp/v2/posts/5421'; public $matched_rule = '^wp-json/(.*)?'; public $matched_query = 'rest_route=/wp%2Fv2%2Fposts%2F5421'; public $did_permalink = TRUE }] ).../plugin.php:524
80.843746030184WP_Hook->apply_filters( $value = '', $args = [0 => class WP { public $public_query_vars = [...]; public $private_query_vars = [...]; public $extra_query_vars = [...]; public $query_vars = [...]; public $query_string = ''; public $request = 'wp-json/wp/v2/posts/5421'; public $matched_rule = '^wp-json/(.*)?'; public $matched_query = 'rest_route=/wp%2Fv2%2Fposts%2F5421'; public $did_permalink = TRUE }] ).../class-wp-hook.php:331
90.843746031312rest_api_loaded( class WP { public $public_query_vars = [0 => 'm', 1 => 'p', 2 => 'posts', 3 => 'w', 4 => 'cat', 5 => 'withcomments', 6 => 'withoutcomments', 7 => 's', 8 => 'search', 9 => 'exact', 10 => 'sentence', 11 => 'calendar', 12 => 'page', 13 => 'paged', 14 => 'more', 15 => 'tb', 16 => 'pb', 17 => 'author', 18 => 'order', 19 => 'orderby', 20 => 'year', 21 => 'monthnum', 22 => 'day', 23 => 'hour', 24 => 'minute', 25 => 'second', 26 => 'name', 27 => 'category_name', 28 => 'tag', 29 => 'feed', 30 => 'author_name', 31 => 'pagename', 32 => 'page_id', 33 => 'error', 34 => 'attachment', 35 => 'attachment_id', 36 => 'subpost', 37 => 'subpost_id', 38 => 'preview', 39 => 'robots', 40 => 'favicon', 41 => 'taxonomy', 42 => 'term', 43 => 'cpage', 44 => 'post_type', 45 => 'embed', 46 => 'post_format', 47 => 'rest_route', 48 => 'sitemap', 49 => 'sitemap-subtype', 50 => 'sitemap-stylesheet']; public $private_query_vars = [0 => 'offset', 1 => 'posts_per_page', 2 => 'posts_per_archive_page', 3 => 'showposts', 4 => 'nopaging', 5 => 'post_type', 6 => 'post_status', 7 => 'category__in', 8 => 'category__not_in', 9 => 'category__and', 10 => 'tag__in', 11 => 'tag__not_in', 12 => 'tag__and', 13 => 'tag_slug__in', 14 => 'tag_slug__and', 15 => 'tag_id', 16 => 'post_mime_type', 17 => 'perm', 18 => 'comments_per_page', 19 => 'post__in', 20 => 'post__not_in', 21 => 'post_parent', 22 => 'post_parent__in', 23 => 'post_parent__not_in', 24 => 'title', 25 => 'fields']; public $extra_query_vars = []; public $query_vars = ['rest_route' => '/wp/v2/posts/5421']; public $query_string = ''; public $request = 'wp-json/wp/v2/posts/5421'; public $matched_rule = '^wp-json/(.*)?'; public $matched_query = 'rest_route=/wp%2Fv2%2Fposts%2F5421'; public $did_permalink = TRUE } ).../class-wp-hook.php:307
100.894447863504WP_REST_Server->serve_request( $path = '/wp/v2/posts/5421' ).../rest-api.php:394
110.894447863328WP_REST_Server->send_header( $key = 'Content-Type', $value = 'application/json; charset=UTF-8' ).../class-wp-rest-server.php:282
120.894447863712header( $header = 'Content-Type: application/json; charset=UTF-8' ).../class-wp-rest-server.php:1717
( ! ) Warning: Cannot modify header information - headers already sent by (output started at /home/moovafri/public_html/news/wp-content/plugins/jetpack/class.jetpack-ixr-client.php:91) in /home/moovafri/public_html/news/wp-includes/rest-api/class-wp-rest-server.php on line 1717
Call Stack
#TimeMemoryFunctionLocation
10.0003397032{main}( ).../index.php:0
20.0005398768require( '/home/moovafri/public_html/news/wp-blog-header.php ).../index.php:17
30.842845996384wp( $query_vars = ??? ).../wp-blog-header.php:16
40.842845996384WP->main( $query_args = '' ).../functions.php:1330
50.842845996384WP->parse_request( $extra_query_vars = '' ).../class-wp.php:770
60.843746030184do_action_ref_array( $hook_name = 'parse_request', $args = [0 => class WP { public $public_query_vars = [...]; public $private_query_vars = [...]; public $extra_query_vars = [...]; public $query_vars = [...]; public $query_string = ''; public $request = 'wp-json/wp/v2/posts/5421'; public $matched_rule = '^wp-json/(.*)?'; public $matched_query = 'rest_route=/wp%2Fv2%2Fposts%2F5421'; public $did_permalink = TRUE }] ).../class-wp.php:398
70.843746030184WP_Hook->do_action( $args = [0 => class WP { public $public_query_vars = [...]; public $private_query_vars = [...]; public $extra_query_vars = [...]; public $query_vars = [...]; public $query_string = ''; public $request = 'wp-json/wp/v2/posts/5421'; public $matched_rule = '^wp-json/(.*)?'; public $matched_query = 'rest_route=/wp%2Fv2%2Fposts%2F5421'; public $did_permalink = TRUE }] ).../plugin.php:524
80.843746030184WP_Hook->apply_filters( $value = '', $args = [0 => class WP { public $public_query_vars = [...]; public $private_query_vars = [...]; public $extra_query_vars = [...]; public $query_vars = [...]; public $query_string = ''; public $request = 'wp-json/wp/v2/posts/5421'; public $matched_rule = '^wp-json/(.*)?'; public $matched_query = 'rest_route=/wp%2Fv2%2Fposts%2F5421'; public $did_permalink = TRUE }] ).../class-wp-hook.php:331
90.843746031312rest_api_loaded( class WP { public $public_query_vars = [0 => 'm', 1 => 'p', 2 => 'posts', 3 => 'w', 4 => 'cat', 5 => 'withcomments', 6 => 'withoutcomments', 7 => 's', 8 => 'search', 9 => 'exact', 10 => 'sentence', 11 => 'calendar', 12 => 'page', 13 => 'paged', 14 => 'more', 15 => 'tb', 16 => 'pb', 17 => 'author', 18 => 'order', 19 => 'orderby', 20 => 'year', 21 => 'monthnum', 22 => 'day', 23 => 'hour', 24 => 'minute', 25 => 'second', 26 => 'name', 27 => 'category_name', 28 => 'tag', 29 => 'feed', 30 => 'author_name', 31 => 'pagename', 32 => 'page_id', 33 => 'error', 34 => 'attachment', 35 => 'attachment_id', 36 => 'subpost', 37 => 'subpost_id', 38 => 'preview', 39 => 'robots', 40 => 'favicon', 41 => 'taxonomy', 42 => 'term', 43 => 'cpage', 44 => 'post_type', 45 => 'embed', 46 => 'post_format', 47 => 'rest_route', 48 => 'sitemap', 49 => 'sitemap-subtype', 50 => 'sitemap-stylesheet']; public $private_query_vars = [0 => 'offset', 1 => 'posts_per_page', 2 => 'posts_per_archive_page', 3 => 'showposts', 4 => 'nopaging', 5 => 'post_type', 6 => 'post_status', 7 => 'category__in', 8 => 'category__not_in', 9 => 'category__and', 10 => 'tag__in', 11 => 'tag__not_in', 12 => 'tag__and', 13 => 'tag_slug__in', 14 => 'tag_slug__and', 15 => 'tag_id', 16 => 'post_mime_type', 17 => 'perm', 18 => 'comments_per_page', 19 => 'post__in', 20 => 'post__not_in', 21 => 'post_parent', 22 => 'post_parent__in', 23 => 'post_parent__not_in', 24 => 'title', 25 => 'fields']; public $extra_query_vars = []; public $query_vars = ['rest_route' => '/wp/v2/posts/5421']; public $query_string = ''; public $request = 'wp-json/wp/v2/posts/5421'; public $matched_rule = '^wp-json/(.*)?'; public $matched_query = 'rest_route=/wp%2Fv2%2Fposts%2F5421'; public $did_permalink = TRUE } ).../class-wp-hook.php:307
100.894447863504WP_REST_Server->serve_request( $path = '/wp/v2/posts/5421' ).../rest-api.php:394
110.894847863272WP_REST_Server->send_header( $key = 'X-Robots-Tag', $value = 'noindex' ).../class-wp-rest-server.php:283
120.894847863592header( $header = 'X-Robots-Tag: noindex' ).../class-wp-rest-server.php:1717
( ! ) Warning: Cannot modify header information - headers already sent by (output started at /home/moovafri/public_html/news/wp-content/plugins/jetpack/class.jetpack-ixr-client.php:91) in /home/moovafri/public_html/news/wp-includes/rest-api/class-wp-rest-server.php on line 1717
Call Stack
#TimeMemoryFunctionLocation
10.0003397032{main}( ).../index.php:0
20.0005398768require( '/home/moovafri/public_html/news/wp-blog-header.php ).../index.php:17
30.842845996384wp( $query_vars = ??? ).../wp-blog-header.php:16
40.842845996384WP->main( $query_args = '' ).../functions.php:1330
50.842845996384WP->parse_request( $extra_query_vars = '' ).../class-wp.php:770
60.843746030184do_action_ref_array( $hook_name = 'parse_request', $args = [0 => class WP { public $public_query_vars = [...]; public $private_query_vars = [...]; public $extra_query_vars = [...]; public $query_vars = [...]; public $query_string = ''; public $request = 'wp-json/wp/v2/posts/5421'; public $matched_rule = '^wp-json/(.*)?'; public $matched_query = 'rest_route=/wp%2Fv2%2Fposts%2F5421'; public $did_permalink = TRUE }] ).../class-wp.php:398
70.843746030184WP_Hook->do_action( $args = [0 => class WP { public $public_query_vars = [...]; public $private_query_vars = [...]; public $extra_query_vars = [...]; public $query_vars = [...]; public $query_string = ''; public $request = 'wp-json/wp/v2/posts/5421'; public $matched_rule = '^wp-json/(.*)?'; public $matched_query = 'rest_route=/wp%2Fv2%2Fposts%2F5421'; public $did_permalink = TRUE }] ).../plugin.php:524
80.843746030184WP_Hook->apply_filters( $value = '', $args = [0 => class WP { public $public_query_vars = [...]; public $private_query_vars = [...]; public $extra_query_vars = [...]; public $query_vars = [...]; public $query_string = ''; public $request = 'wp-json/wp/v2/posts/5421'; public $matched_rule = '^wp-json/(.*)?'; public $matched_query = 'rest_route=/wp%2Fv2%2Fposts%2F5421'; public $did_permalink = TRUE }] ).../class-wp-hook.php:331
90.843746031312rest_api_loaded( class WP { public $public_query_vars = [0 => 'm', 1 => 'p', 2 => 'posts', 3 => 'w', 4 => 'cat', 5 => 'withcomments', 6 => 'withoutcomments', 7 => 's', 8 => 'search', 9 => 'exact', 10 => 'sentence', 11 => 'calendar', 12 => 'page', 13 => 'paged', 14 => 'more', 15 => 'tb', 16 => 'pb', 17 => 'author', 18 => 'order', 19 => 'orderby', 20 => 'year', 21 => 'monthnum', 22 => 'day', 23 => 'hour', 24 => 'minute', 25 => 'second', 26 => 'name', 27 => 'category_name', 28 => 'tag', 29 => 'feed', 30 => 'author_name', 31 => 'pagename', 32 => 'page_id', 33 => 'error', 34 => 'attachment', 35 => 'attachment_id', 36 => 'subpost', 37 => 'subpost_id', 38 => 'preview', 39 => 'robots', 40 => 'favicon', 41 => 'taxonomy', 42 => 'term', 43 => 'cpage', 44 => 'post_type', 45 => 'embed', 46 => 'post_format', 47 => 'rest_route', 48 => 'sitemap', 49 => 'sitemap-subtype', 50 => 'sitemap-stylesheet']; public $private_query_vars = [0 => 'offset', 1 => 'posts_per_page', 2 => 'posts_per_archive_page', 3 => 'showposts', 4 => 'nopaging', 5 => 'post_type', 6 => 'post_status', 7 => 'category__in', 8 => 'category__not_in', 9 => 'category__and', 10 => 'tag__in', 11 => 'tag__not_in', 12 => 'tag__and', 13 => 'tag_slug__in', 14 => 'tag_slug__and', 15 => 'tag_id', 16 => 'post_mime_type', 17 => 'perm', 18 => 'comments_per_page', 19 => 'post__in', 20 => 'post__not_in', 21 => 'post_parent', 22 => 'post_parent__in', 23 => 'post_parent__not_in', 24 => 'title', 25 => 'fields']; public $extra_query_vars = []; public $query_vars = ['rest_route' => '/wp/v2/posts/5421']; public $query_string = ''; public $request = 'wp-json/wp/v2/posts/5421'; public $matched_rule = '^wp-json/(.*)?'; public $matched_query = 'rest_route=/wp%2Fv2%2Fposts%2F5421'; public $did_permalink = TRUE } ).../class-wp-hook.php:307
100.894447863504WP_REST_Server->serve_request( $path = '/wp/v2/posts/5421' ).../rest-api.php:394
110.895447863432WP_REST_Server->send_header( $key = 'Link', $value = '<http://moovafrica.com/news/wp-json/>; rel="https://api.w.org/"' ).../class-wp-rest-server.php:287
120.895447863864header( $header = 'Link: <http://moovafrica.com/news/wp-json/>; rel="https://api.w.org/"' ).../class-wp-rest-server.php:1717
( ! ) Warning: Cannot modify header information - headers already sent by (output started at /home/moovafri/public_html/news/wp-content/plugins/jetpack/class.jetpack-ixr-client.php:91) in /home/moovafri/public_html/news/wp-includes/rest-api/class-wp-rest-server.php on line 1717
Call Stack
#TimeMemoryFunctionLocation
10.0003397032{main}( ).../index.php:0
20.0005398768require( '/home/moovafri/public_html/news/wp-blog-header.php ).../index.php:17
30.842845996384wp( $query_vars = ??? ).../wp-blog-header.php:16
40.842845996384WP->main( $query_args = '' ).../functions.php:1330
50.842845996384WP->parse_request( $extra_query_vars = '' ).../class-wp.php:770
60.843746030184do_action_ref_array( $hook_name = 'parse_request', $args = [0 => class WP { public $public_query_vars = [...]; public $private_query_vars = [...]; public $extra_query_vars = [...]; public $query_vars = [...]; public $query_string = ''; public $request = 'wp-json/wp/v2/posts/5421'; public $matched_rule = '^wp-json/(.*)?'; public $matched_query = 'rest_route=/wp%2Fv2%2Fposts%2F5421'; public $did_permalink = TRUE }] ).../class-wp.php:398
70.843746030184WP_Hook->do_action( $args = [0 => class WP { public $public_query_vars = [...]; public $private_query_vars = [...]; public $extra_query_vars = [...]; public $query_vars = [...]; public $query_string = ''; public $request = 'wp-json/wp/v2/posts/5421'; public $matched_rule = '^wp-json/(.*)?'; public $matched_query = 'rest_route=/wp%2Fv2%2Fposts%2F5421'; public $did_permalink = TRUE }] ).../plugin.php:524
80.843746030184WP_Hook->apply_filters( $value = '', $args = [0 => class WP { public $public_query_vars = [...]; public $private_query_vars = [...]; public $extra_query_vars = [...]; public $query_vars = [...]; public $query_string = ''; public $request = 'wp-json/wp/v2/posts/5421'; public $matched_rule = '^wp-json/(.*)?'; public $matched_query = 'rest_route=/wp%2Fv2%2Fposts%2F5421'; public $did_permalink = TRUE }] ).../class-wp-hook.php:331
90.843746031312rest_api_loaded( class WP { public $public_query_vars = [0 => 'm', 1 => 'p', 2 => 'posts', 3 => 'w', 4 => 'cat', 5 => 'withcomments', 6 => 'withoutcomments', 7 => 's', 8 => 'search', 9 => 'exact', 10 => 'sentence', 11 => 'calendar', 12 => 'page', 13 => 'paged', 14 => 'more', 15 => 'tb', 16 => 'pb', 17 => 'author', 18 => 'order', 19 => 'orderby', 20 => 'year', 21 => 'monthnum', 22 => 'day', 23 => 'hour', 24 => 'minute', 25 => 'second', 26 => 'name', 27 => 'category_name', 28 => 'tag', 29 => 'feed', 30 => 'author_name', 31 => 'pagename', 32 => 'page_id', 33 => 'error', 34 => 'attachment', 35 => 'attachment_id', 36 => 'subpost', 37 => 'subpost_id', 38 => 'preview', 39 => 'robots', 40 => 'favicon', 41 => 'taxonomy', 42 => 'term', 43 => 'cpage', 44 => 'post_type', 45 => 'embed', 46 => 'post_format', 47 => 'rest_route', 48 => 'sitemap', 49 => 'sitemap-subtype', 50 => 'sitemap-stylesheet']; public $private_query_vars = [0 => 'offset', 1 => 'posts_per_page', 2 => 'posts_per_archive_page', 3 => 'showposts', 4 => 'nopaging', 5 => 'post_type', 6 => 'post_status', 7 => 'category__in', 8 => 'category__not_in', 9 => 'category__and', 10 => 'tag__in', 11 => 'tag__not_in', 12 => 'tag__and', 13 => 'tag_slug__in', 14 => 'tag_slug__and', 15 => 'tag_id', 16 => 'post_mime_type', 17 => 'perm', 18 => 'comments_per_page', 19 => 'post__in', 20 => 'post__not_in', 21 => 'post_parent', 22 => 'post_parent__in', 23 => 'post_parent__not_in', 24 => 'title', 25 => 'fields']; public $extra_query_vars = []; public $query_vars = ['rest_route' => '/wp/v2/posts/5421']; public $query_string = ''; public $request = 'wp-json/wp/v2/posts/5421'; public $matched_rule = '^wp-json/(.*)?'; public $matched_query = 'rest_route=/wp%2Fv2%2Fposts%2F5421'; public $did_permalink = TRUE } ).../class-wp-hook.php:307
100.894447863504WP_REST_Server->serve_request( $path = '/wp/v2/posts/5421' ).../rest-api.php:394
110.895747863336WP_REST_Server->send_header( $key = 'X-Content-Type-Options', $value = 'nosniff' ).../class-wp-rest-server.php:295
120.895747863656header( $header = 'X-Content-Type-Options: nosniff' ).../class-wp-rest-server.php:1717
( ! ) Warning: Cannot modify header information - headers already sent by (output started at /home/moovafri/public_html/news/wp-content/plugins/jetpack/class.jetpack-ixr-client.php:91) in /home/moovafri/public_html/news/wp-includes/rest-api/class-wp-rest-server.php on line 1717
Call Stack
#TimeMemoryFunctionLocation
10.0003397032{main}( ).../index.php:0
20.0005398768require( '/home/moovafri/public_html/news/wp-blog-header.php ).../index.php:17
30.842845996384wp( $query_vars = ??? ).../wp-blog-header.php:16
40.842845996384WP->main( $query_args = '' ).../functions.php:1330
50.842845996384WP->parse_request( $extra_query_vars = '' ).../class-wp.php:770
60.843746030184do_action_ref_array( $hook_name = 'parse_request', $args = [0 => class WP { public $public_query_vars = [...]; public $private_query_vars = [...]; public $extra_query_vars = [...]; public $query_vars = [...]; public $query_string = ''; public $request = 'wp-json/wp/v2/posts/5421'; public $matched_rule = '^wp-json/(.*)?'; public $matched_query = 'rest_route=/wp%2Fv2%2Fposts%2F5421'; public $did_permalink = TRUE }] ).../class-wp.php:398
70.843746030184WP_Hook->do_action( $args = [0 => class WP { public $public_query_vars = [...]; public $private_query_vars = [...]; public $extra_query_vars = [...]; public $query_vars = [...]; public $query_string = ''; public $request = 'wp-json/wp/v2/posts/5421'; public $matched_rule = '^wp-json/(.*)?'; public $matched_query = 'rest_route=/wp%2Fv2%2Fposts%2F5421'; public $did_permalink = TRUE }] ).../plugin.php:524
80.843746030184WP_Hook->apply_filters( $value = '', $args = [0 => class WP { public $public_query_vars = [...]; public $private_query_vars = [...]; public $extra_query_vars = [...]; public $query_vars = [...]; public $query_string = ''; public $request = 'wp-json/wp/v2/posts/5421'; public $matched_rule = '^wp-json/(.*)?'; public $matched_query = 'rest_route=/wp%2Fv2%2Fposts%2F5421'; public $did_permalink = TRUE }] ).../class-wp-hook.php:331
90.843746031312rest_api_loaded( class WP { public $public_query_vars = [0 => 'm', 1 => 'p', 2 => 'posts', 3 => 'w', 4 => 'cat', 5 => 'withcomments', 6 => 'withoutcomments', 7 => 's', 8 => 'search', 9 => 'exact', 10 => 'sentence', 11 => 'calendar', 12 => 'page', 13 => 'paged', 14 => 'more', 15 => 'tb', 16 => 'pb', 17 => 'author', 18 => 'order', 19 => 'orderby', 20 => 'year', 21 => 'monthnum', 22 => 'day', 23 => 'hour', 24 => 'minute', 25 => 'second', 26 => 'name', 27 => 'category_name', 28 => 'tag', 29 => 'feed', 30 => 'author_name', 31 => 'pagename', 32 => 'page_id', 33 => 'error', 34 => 'attachment', 35 => 'attachment_id', 36 => 'subpost', 37 => 'subpost_id', 38 => 'preview', 39 => 'robots', 40 => 'favicon', 41 => 'taxonomy', 42 => 'term', 43 => 'cpage', 44 => 'post_type', 45 => 'embed', 46 => 'post_format', 47 => 'rest_route', 48 => 'sitemap', 49 => 'sitemap-subtype', 50 => 'sitemap-stylesheet']; public $private_query_vars = [0 => 'offset', 1 => 'posts_per_page', 2 => 'posts_per_archive_page', 3 => 'showposts', 4 => 'nopaging', 5 => 'post_type', 6 => 'post_status', 7 => 'category__in', 8 => 'category__not_in', 9 => 'category__and', 10 => 'tag__in', 11 => 'tag__not_in', 12 => 'tag__and', 13 => 'tag_slug__in', 14 => 'tag_slug__and', 15 => 'tag_id', 16 => 'post_mime_type', 17 => 'perm', 18 => 'comments_per_page', 19 => 'post__in', 20 => 'post__not_in', 21 => 'post_parent', 22 => 'post_parent__in', 23 => 'post_parent__not_in', 24 => 'title', 25 => 'fields']; public $extra_query_vars = []; public $query_vars = ['rest_route' => '/wp/v2/posts/5421']; public $query_string = ''; public $request = 'wp-json/wp/v2/posts/5421'; public $matched_rule = '^wp-json/(.*)?'; public $matched_query = 'rest_route=/wp%2Fv2%2Fposts%2F5421'; public $did_permalink = TRUE } ).../class-wp-hook.php:307
100.894447863504WP_REST_Server->serve_request( $path = '/wp/v2/posts/5421' ).../rest-api.php:394
110.896147863400WP_REST_Server->send_header( $key = 'Access-Control-Expose-Headers', $value = 'X-WP-Total, X-WP-TotalPages, Link' ).../class-wp-rest-server.php:307
120.896147863832header( $header = 'Access-Control-Expose-Headers: X-WP-Total, X-WP-TotalPages, Link' ).../class-wp-rest-server.php:1717
( ! ) Warning: Cannot modify header information - headers already sent by (output started at /home/moovafri/public_html/news/wp-content/plugins/jetpack/class.jetpack-ixr-client.php:91) in /home/moovafri/public_html/news/wp-includes/rest-api/class-wp-rest-server.php on line 1717
Call Stack
#TimeMemoryFunctionLocation
10.0003397032{main}( ).../index.php:0
20.0005398768require( '/home/moovafri/public_html/news/wp-blog-header.php ).../index.php:17
30.842845996384wp( $query_vars = ??? ).../wp-blog-header.php:16
40.842845996384WP->main( $query_args = '' ).../functions.php:1330
50.842845996384WP->parse_request( $extra_query_vars = '' ).../class-wp.php:770
60.843746030184do_action_ref_array( $hook_name = 'parse_request', $args = [0 => class WP { public $public_query_vars = [...]; public $private_query_vars = [...]; public $extra_query_vars = [...]; public $query_vars = [...]; public $query_string = ''; public $request = 'wp-json/wp/v2/posts/5421'; public $matched_rule = '^wp-json/(.*)?'; public $matched_query = 'rest_route=/wp%2Fv2%2Fposts%2F5421'; public $did_permalink = TRUE }] ).../class-wp.php:398
70.843746030184WP_Hook->do_action( $args = [0 => class WP { public $public_query_vars = [...]; public $private_query_vars = [...]; public $extra_query_vars = [...]; public $query_vars = [...]; public $query_string = ''; public $request = 'wp-json/wp/v2/posts/5421'; public $matched_rule = '^wp-json/(.*)?'; public $matched_query = 'rest_route=/wp%2Fv2%2Fposts%2F5421'; public $did_permalink = TRUE }] ).../plugin.php:524
80.843746030184WP_Hook->apply_filters( $value = '', $args = [0 => class WP { public $public_query_vars = [...]; public $private_query_vars = [...]; public $extra_query_vars = [...]; public $query_vars = [...]; public $query_string = ''; public $request = 'wp-json/wp/v2/posts/5421'; public $matched_rule = '^wp-json/(.*)?'; public $matched_query = 'rest_route=/wp%2Fv2%2Fposts%2F5421'; public $did_permalink = TRUE }] ).../class-wp-hook.php:331
90.843746031312rest_api_loaded( class WP { public $public_query_vars = [0 => 'm', 1 => 'p', 2 => 'posts', 3 => 'w', 4 => 'cat', 5 => 'withcomments', 6 => 'withoutcomments', 7 => 's', 8 => 'search', 9 => 'exact', 10 => 'sentence', 11 => 'calendar', 12 => 'page', 13 => 'paged', 14 => 'more', 15 => 'tb', 16 => 'pb', 17 => 'author', 18 => 'order', 19 => 'orderby', 20 => 'year', 21 => 'monthnum', 22 => 'day', 23 => 'hour', 24 => 'minute', 25 => 'second', 26 => 'name', 27 => 'category_name', 28 => 'tag', 29 => 'feed', 30 => 'author_name', 31 => 'pagename', 32 => 'page_id', 33 => 'error', 34 => 'attachment', 35 => 'attachment_id', 36 => 'subpost', 37 => 'subpost_id', 38 => 'preview', 39 => 'robots', 40 => 'favicon', 41 => 'taxonomy', 42 => 'term', 43 => 'cpage', 44 => 'post_type', 45 => 'embed', 46 => 'post_format', 47 => 'rest_route', 48 => 'sitemap', 49 => 'sitemap-subtype', 50 => 'sitemap-stylesheet']; public $private_query_vars = [0 => 'offset', 1 => 'posts_per_page', 2 => 'posts_per_archive_page', 3 => 'showposts', 4 => 'nopaging', 5 => 'post_type', 6 => 'post_status', 7 => 'category__in', 8 => 'category__not_in', 9 => 'category__and', 10 => 'tag__in', 11 => 'tag__not_in', 12 => 'tag__and', 13 => 'tag_slug__in', 14 => 'tag_slug__and', 15 => 'tag_id', 16 => 'post_mime_type', 17 => 'perm', 18 => 'comments_per_page', 19 => 'post__in', 20 => 'post__not_in', 21 => 'post_parent', 22 => 'post_parent__in', 23 => 'post_parent__not_in', 24 => 'title', 25 => 'fields']; public $extra_query_vars = []; public $query_vars = ['rest_route' => '/wp/v2/posts/5421']; public $query_string = ''; public $request = 'wp-json/wp/v2/posts/5421'; public $matched_rule = '^wp-json/(.*)?'; public $matched_query = 'rest_route=/wp%2Fv2%2Fposts%2F5421'; public $did_permalink = TRUE } ).../class-wp-hook.php:307
100.894447863504WP_REST_Server->serve_request( $path = '/wp/v2/posts/5421' ).../rest-api.php:394
110.896447863448WP_REST_Server->send_header( $key = 'Access-Control-Allow-Headers', $value = 'Authorization, X-WP-Nonce, Content-Disposition, Content-MD5, Content-Type' ).../class-wp-rest-server.php:331
120.896447863928header( $header = 'Access-Control-Allow-Headers: Authorization, X-WP-Nonce, Content-Disposition, Content-MD5, Content-Type' ).../class-wp-rest-server.php:1717
( ! ) Warning: Cannot modify header information - headers already sent by (output started at /home/moovafri/public_html/news/wp-content/plugins/jetpack/class.jetpack-ixr-client.php:91) in /home/moovafri/public_html/news/wp-includes/rest-api/class-wp-rest-server.php on line 1717
Call Stack
#TimeMemoryFunctionLocation
10.0003397032{main}( ).../index.php:0
20.0005398768require( '/home/moovafri/public_html/news/wp-blog-header.php ).../index.php:17
30.842845996384wp( $query_vars = ??? ).../wp-blog-header.php:16
40.842845996384WP->main( $query_args = '' ).../functions.php:1330
50.842845996384WP->parse_request( $extra_query_vars = '' ).../class-wp.php:770
60.843746030184do_action_ref_array( $hook_name = 'parse_request', $args = [0 => class WP { public $public_query_vars = [...]; public $private_query_vars = [...]; public $extra_query_vars = [...]; public $query_vars = [...]; public $query_string = ''; public $request = 'wp-json/wp/v2/posts/5421'; public $matched_rule = '^wp-json/(.*)?'; public $matched_query = 'rest_route=/wp%2Fv2%2Fposts%2F5421'; public $did_permalink = TRUE }] ).../class-wp.php:398
70.843746030184WP_Hook->do_action( $args = [0 => class WP { public $public_query_vars = [...]; public $private_query_vars = [...]; public $extra_query_vars = [...]; public $query_vars = [...]; public $query_string = ''; public $request = 'wp-json/wp/v2/posts/5421'; public $matched_rule = '^wp-json/(.*)?'; public $matched_query = 'rest_route=/wp%2Fv2%2Fposts%2F5421'; public $did_permalink = TRUE }] ).../plugin.php:524
80.843746030184WP_Hook->apply_filters( $value = '', $args = [0 => class WP { public $public_query_vars = [...]; public $private_query_vars = [...]; public $extra_query_vars = [...]; public $query_vars = [...]; public $query_string = ''; public $request = 'wp-json/wp/v2/posts/5421'; public $matched_rule = '^wp-json/(.*)?'; public $matched_query = 'rest_route=/wp%2Fv2%2Fposts%2F5421'; public $did_permalink = TRUE }] ).../class-wp-hook.php:331
90.843746031312rest_api_loaded( class WP { public $public_query_vars = [0 => 'm', 1 => 'p', 2 => 'posts', 3 => 'w', 4 => 'cat', 5 => 'withcomments', 6 => 'withoutcomments', 7 => 's', 8 => 'search', 9 => 'exact', 10 => 'sentence', 11 => 'calendar', 12 => 'page', 13 => 'paged', 14 => 'more', 15 => 'tb', 16 => 'pb', 17 => 'author', 18 => 'order', 19 => 'orderby', 20 => 'year', 21 => 'monthnum', 22 => 'day', 23 => 'hour', 24 => 'minute', 25 => 'second', 26 => 'name', 27 => 'category_name', 28 => 'tag', 29 => 'feed', 30 => 'author_name', 31 => 'pagename', 32 => 'page_id', 33 => 'error', 34 => 'attachment', 35 => 'attachment_id', 36 => 'subpost', 37 => 'subpost_id', 38 => 'preview', 39 => 'robots', 40 => 'favicon', 41 => 'taxonomy', 42 => 'term', 43 => 'cpage', 44 => 'post_type', 45 => 'embed', 46 => 'post_format', 47 => 'rest_route', 48 => 'sitemap', 49 => 'sitemap-subtype', 50 => 'sitemap-stylesheet']; public $private_query_vars = [0 => 'offset', 1 => 'posts_per_page', 2 => 'posts_per_archive_page', 3 => 'showposts', 4 => 'nopaging', 5 => 'post_type', 6 => 'post_status', 7 => 'category__in', 8 => 'category__not_in', 9 => 'category__and', 10 => 'tag__in', 11 => 'tag__not_in', 12 => 'tag__and', 13 => 'tag_slug__in', 14 => 'tag_slug__and', 15 => 'tag_id', 16 => 'post_mime_type', 17 => 'perm', 18 => 'comments_per_page', 19 => 'post__in', 20 => 'post__not_in', 21 => 'post_parent', 22 => 'post_parent__in', 23 => 'post_parent__not_in', 24 => 'title', 25 => 'fields']; public $extra_query_vars = []; public $query_vars = ['rest_route' => '/wp/v2/posts/5421']; public $query_string = ''; public $request = 'wp-json/wp/v2/posts/5421'; public $matched_rule = '^wp-json/(.*)?'; public $matched_query = 'rest_route=/wp%2Fv2%2Fposts%2F5421'; public $did_permalink = TRUE } ).../class-wp-hook.php:307
100.894447863504WP_REST_Server->serve_request( $path = '/wp/v2/posts/5421' ).../rest-api.php:394
111.404048446600WP_REST_Server->send_headers( $headers = ['Link' => '<http://moovafrica.com/news/are-those-80000-pound-trucks-tailgating-each-other/>; rel="alternate"; type=text/html', 'Allow' => 'GET'] ).../class-wp-rest-server.php:447
121.404048446600WP_REST_Server->send_header( $key = 'Link', $value = '<http://moovafrica.com/news/are-those-80000-pound-trucks-tailgating-each-other/>; rel="alternate"; type=text/html' ).../class-wp-rest-server.php:1729
131.404048447112header( $header = 'Link: <http://moovafrica.com/news/are-those-80000-pound-trucks-tailgating-each-other/>; rel="alternate"; type=text/html' ).../class-wp-rest-server.php:1717
( ! ) Warning: Cannot modify header information - headers already sent by (output started at /home/moovafri/public_html/news/wp-content/plugins/jetpack/class.jetpack-ixr-client.php:91) in /home/moovafri/public_html/news/wp-includes/rest-api/class-wp-rest-server.php on line 1717
Call Stack
#TimeMemoryFunctionLocation
10.0003397032{main}( ).../index.php:0
20.0005398768require( '/home/moovafri/public_html/news/wp-blog-header.php ).../index.php:17
30.842845996384wp( $query_vars = ??? ).../wp-blog-header.php:16
40.842845996384WP->main( $query_args = '' ).../functions.php:1330
50.842845996384WP->parse_request( $extra_query_vars = '' ).../class-wp.php:770
60.843746030184do_action_ref_array( $hook_name = 'parse_request', $args = [0 => class WP { public $public_query_vars = [...]; public $private_query_vars = [...]; public $extra_query_vars = [...]; public $query_vars = [...]; public $query_string = ''; public $request = 'wp-json/wp/v2/posts/5421'; public $matched_rule = '^wp-json/(.*)?'; public $matched_query = 'rest_route=/wp%2Fv2%2Fposts%2F5421'; public $did_permalink = TRUE }] ).../class-wp.php:398
70.843746030184WP_Hook->do_action( $args = [0 => class WP { public $public_query_vars = [...]; public $private_query_vars = [...]; public $extra_query_vars = [...]; public $query_vars = [...]; public $query_string = ''; public $request = 'wp-json/wp/v2/posts/5421'; public $matched_rule = '^wp-json/(.*)?'; public $matched_query = 'rest_route=/wp%2Fv2%2Fposts%2F5421'; public $did_permalink = TRUE }] ).../plugin.php:524
80.843746030184WP_Hook->apply_filters( $value = '', $args = [0 => class WP { public $public_query_vars = [...]; public $private_query_vars = [...]; public $extra_query_vars = [...]; public $query_vars = [...]; public $query_string = ''; public $request = 'wp-json/wp/v2/posts/5421'; public $matched_rule = '^wp-json/(.*)?'; public $matched_query = 'rest_route=/wp%2Fv2%2Fposts%2F5421'; public $did_permalink = TRUE }] ).../class-wp-hook.php:331
90.843746031312rest_api_loaded( class WP { public $public_query_vars = [0 => 'm', 1 => 'p', 2 => 'posts', 3 => 'w', 4 => 'cat', 5 => 'withcomments', 6 => 'withoutcomments', 7 => 's', 8 => 'search', 9 => 'exact', 10 => 'sentence', 11 => 'calendar', 12 => 'page', 13 => 'paged', 14 => 'more', 15 => 'tb', 16 => 'pb', 17 => 'author', 18 => 'order', 19 => 'orderby', 20 => 'year', 21 => 'monthnum', 22 => 'day', 23 => 'hour', 24 => 'minute', 25 => 'second', 26 => 'name', 27 => 'category_name', 28 => 'tag', 29 => 'feed', 30 => 'author_name', 31 => 'pagename', 32 => 'page_id', 33 => 'error', 34 => 'attachment', 35 => 'attachment_id', 36 => 'subpost', 37 => 'subpost_id', 38 => 'preview', 39 => 'robots', 40 => 'favicon', 41 => 'taxonomy', 42 => 'term', 43 => 'cpage', 44 => 'post_type', 45 => 'embed', 46 => 'post_format', 47 => 'rest_route', 48 => 'sitemap', 49 => 'sitemap-subtype', 50 => 'sitemap-stylesheet']; public $private_query_vars = [0 => 'offset', 1 => 'posts_per_page', 2 => 'posts_per_archive_page', 3 => 'showposts', 4 => 'nopaging', 5 => 'post_type', 6 => 'post_status', 7 => 'category__in', 8 => 'category__not_in', 9 => 'category__and', 10 => 'tag__in', 11 => 'tag__not_in', 12 => 'tag__and', 13 => 'tag_slug__in', 14 => 'tag_slug__and', 15 => 'tag_id', 16 => 'post_mime_type', 17 => 'perm', 18 => 'comments_per_page', 19 => 'post__in', 20 => 'post__not_in', 21 => 'post_parent', 22 => 'post_parent__in', 23 => 'post_parent__not_in', 24 => 'title', 25 => 'fields']; public $extra_query_vars = []; public $query_vars = ['rest_route' => '/wp/v2/posts/5421']; public $query_string = ''; public $request = 'wp-json/wp/v2/posts/5421'; public $matched_rule = '^wp-json/(.*)?'; public $matched_query = 'rest_route=/wp%2Fv2%2Fposts%2F5421'; public $did_permalink = TRUE } ).../class-wp-hook.php:307
100.894447863504WP_REST_Server->serve_request( $path = '/wp/v2/posts/5421' ).../rest-api.php:394
111.404048446600WP_REST_Server->send_headers( $headers = ['Link' => '<http://moovafrica.com/news/are-those-80000-pound-trucks-tailgating-each-other/>; rel="alternate"; type=text/html', 'Allow' => 'GET'] ).../class-wp-rest-server.php:447
121.404548446600WP_REST_Server->send_header( $key = 'Allow', $value = 'GET' ).../class-wp-rest-server.php:1729
131.404548446920header( $header = 'Allow: GET' ).../class-wp-rest-server.php:1717
 {"id":5421,"date":"2017-10-23T23:44:30","date_gmt":"2017-10-23T23:44:30","guid":{"rendered":"http:\/\/moovafrica.com\/news\/?p=5421"},"modified":"2017-10-23T23:44:30","modified_gmt":"2017-10-23T23:44:30","slug":"are-those-80000-pound-trucks-tailgating-each-other","status":"publish","type":"post","link":"http:\/\/moovafrica.com\/news\/are-those-80000-pound-trucks-tailgating-each-other\/","title":{"rendered":"Are those 80,000 pound trucks tailgating each other?"},"content":{"rendered":"

Truck<\/span> \u201cplatooning\u201d<\/span><\/p>\n

 <\/p>\n

… soon it may be perfectly normal \u2014 and safe<\/strong><\/span><\/p>\n

W<\/span>ashington Post –<\/span><\/strong> I<\/span><\/span>f you look to the next lane and see two 18-wheelers roar past at 70 mph with just 10 yards between them, you\u2019ll probably think they are dangerously close.<\/span><\/p>\n

In this high-tech age, that may no longer be true. In fact, it might be just the opposite, and it might even end up saving you money.<\/span><\/p>\n

A wave of new technology intended to make trucks safer \u2014 using radar, cameras and reflective light scanning \u2014 is sweeping the industry. By next year, much of it may be combined to put pairs of trucks on the road at a distance that before would not have been possible or safe.<\/span><\/p>\n

One reason this matters to people who don\u2019t drive tractor-trailers is found in the annual\u00a0crash-death numbers<\/a>\u00a0from the National Highway Traffic Safety Administration: Of the 4,317 people who died in crashes involving large trucks last year, 72 percent of them weren\u2019t in trucks, but rather passenger cars. An additional 11 percent were pedestrians, bicyclists, roadway workers or police officers standing beside the highway, according to statistics released this month.<\/span><\/p>\n

Trucks are involved in 11 percent of fatal crashes, although they make up just 4 percent of vehicles on the road, according to the Federal Motor Carrier Safety Administration. Ten percent of truck fatalities are rear-ended crashes \u2014 three times as many as rear-end collisions between two cars.<\/span><\/p>\n

The pairing of tractor-trailers at a distance of 30 to 50 feet is called platooning. Here\u2019s why it\u2019s significant \u2014 and how it might save you money.<\/span><\/p>\n

Fans of bike racing and NASCAR are acquainted with what it means to get into someone else\u2019s slipstream. Whether in spandex or NASCAR fire-retardant suits, racers know they can save energy or fuel by tucking close behind another rider or race car.<\/span><\/p>\n

Truckers know that, too.<\/strong><\/span><\/p>\n

Trucking companies spent about $90 billion on diesel fuel last year. Firms spend the most paying drivers, but buying diesel often is the second-biggest expense, sometimes amounting to 20 percent of operating costs.<\/span><\/p>\n

A truck tucked in the slipstream of another tractor-trailer can save 10 percent on fuel. But the truck in front also will burn about 5 percent less fuel. Why? Part of the drag on a truck plowing into the wind is caused by turbulent air that tumbles off the top and sides of the trailer. When two trucks pair up <\/span>closely, the air flows more smoothly from the first to the second, reducing that turbulence.<\/span><\/p>\n

It\u2019s fuel savings for both drivers. Yes,\u00a0drivers<\/i>; self-driving trucks are said to be coming, but for <\/span>now the prospect of 80,000-pound vehicles hurtling down the highway on their own is somewhere over the horizon. (Uber last year invested $680 million in the autonomous truck company Otto, which delivered 2,000 cases of Budweiser from Fort Collins, Colo., to Colorado Springs in a carefully monitored 130-mile test drive without anyone touching a steering wheel on the highway.)\u00a0<\/span><\/p>\n

\"\"
Are those 80,000-pound trucks tailgating each other?<\/figcaption><\/figure>\n

 <\/p>\n

\u201cThe world of automated vehicles still will have a key role for the drivers,\u201d Chris Spear, president of the American Trucking Associations, said at a recent Senate hearing. \u201cWe think drivers are still going to be in the seat.\u201d<\/span><\/p>\n

But the role of the driver will evolve.<\/strong><\/span><\/p>\n

\u201cI believe drivers will become more like airline pilots,\u201d said Troy Clarke, chief executive of the truck manufacturer Navistar, \u201ceven more trained and skilled than they are today.\u201d<\/span><\/p>\n

Safety advocates, however, have several concerns about platooning trucks, said Jonathan Adkins, executive director of the Governors Highway Safety Association.<\/span><\/p>\n

\u201cThe chief safety concern for passenger vehicles is how other drivers will react to platoons,\u201d Adkins said. \u201cHow fast should platoons be permitted to travel? Will long platoons block exit lanes that were not designed for such circumstances? Can we limit platoons to only the right lane, rather than blocking multiple lanes of traffic? How can we prevent cars from trying to dangerously \u2018cut in\u2019 between platooning trucks?\u201d<\/span><\/p>\n

Adkins adds, \u201cThe good news is that the necessary research is being conducted.\u201d<\/span><\/p>\n

Two big truck manufacturing companies, Navistar and Daimler, are preparing to put platooning trucks on the road, but an upstart California firm called Peloton (named after the bike-racing practice of utilizing the slipstream) says it may leapfrog the big boys to have paired trucks on the road next year.<\/span><\/p>\n

Peloton partnered this year with Omnitracs, a trucking fleet management company. Although trucks from the same trucking company could pair up on the highway on their own, Omnitracs can help match any two trucks heading in the same direction.<\/span><\/p>\n

Peloton says that nine states allow platooning and that 29 others have laws that generally require vehicles to keep a \u201creasonable and prudent\u201d distance between them without specifying an exact distance.<\/span><\/p>\n

Here\u2019s how platooning works:<\/strong><\/span><\/p>\n

Peloton plans to operate a central clearinghouse that communicates through a cellular connection with trucks whose companies have subscribed to their service. Once two trucks are paired, the interaction between the trucks is coordinated over the 5.9 GHz dedicated short-range communications spectrum.<\/span><\/p>\n

\u201cWe\u2019re sending information directly from the front truck to the rear truck, information like engine torque, vehicle speed, brake application,\u201d said Josh Switkes, one of Peloton\u2019s founders. \u201cWhatever the front truck is doing, the rear truck is doing it instantly, automatically, very <\/span>reliably.\u201d<\/span><\/p>\n

Platooning relies on a system of technologies already being installed in trucks and many cars that includes GPS, cameras, advanced cruise <\/span>control and radar-based collision avoidance. A camera from the front truck displays the road ahead to the driver of the second truck. The information flow is coordinated onboard by a computer Switkes describes as \u201cabout the size of a laptop.\u201d<\/span><\/p>\n

The concept of data flying between trucks, from truck to base station and within each truck \u2014 all to make instantaneous decisions with life-or-death implications \u2014 is daunting.<\/span><\/p>\n

\u201cThe amount of data being moved <\/span>about the truck is a lot higher,\u201d said Alan Amici, chief technical officer at the global connectivity corporation TE. \u201cFor platooning, you need real-time control.\u201d<\/span><\/p>\n

Amici said trucks might be operating on data loads of 125 to 500 kilobits per second, but \u201cWith high-speed data moving around in the truck, you can get that up 10 megabits per second, to 100 megabits per second, and when you get into autonomous vehicles, you could be approaching 1 gigabit or 10 gigabits per second. So, it\u2019s really high-speed data that allows much more control.\u201d<\/span><\/p>\n

The Peloton system links acceleration and braking directly to the engine controls, bypassing the driver when two trucks are paired, although both drivers continue to steer and can take full control if a situation warrants it.<\/span><\/p>\n

<\/div>\n

\u201cWe can send data very rapidly between the two trucks,\u201d Switkes said. \u201cIt\u2019s all electronically integrated. The reaction is about 30 milliseconds, compared to a human taking 1 to 1.5 seconds to react, at a minimum.\u201d<\/span><\/p>\n

Follow us\u00a0on Facebook for more Logistics News<\/strong><\/a><\/em><\/span><\/p>\n

The Peloton control center will determine when conditions are suited to pairing two trucks.<\/span><\/p>\n

\u201cIn severe weather conditions, we can restrict platooning,\u201d Switkes said. \u201cIn severe traffic conditions, we can restrict platooning and we can adjust the following distance and other parameters remotely. If we lose the connection, we know we\u2019ve lost it and immediately take action to slow down that rear truck.\u201d<\/span><\/p>\n

Although Switkes likes to emphasize the safety aspects of platooning \u2014 and trucking companies see that, too \u2014 firms will be lured to Peloton and competitors by fuel savings.<\/span><\/p>\n

\u201cMost of the fleets we talk to say they can platoon most of the <\/span>time because they drive almost entirely on the highway,\u201d Switkes said. \u201cIf you have a fleet of 20,000 or 30,000 trucks, you\u2019re talking millions of dollars from the fuel savings, not even taking into account the safety benefits, and that\u2019s why we have some big fleets excited about platooning.\u201d<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

Truck \u201cplatooning\u201d   … soon it may be perfectly normal \u2014 and safe Washington Post – If you look to the next lane and see two 18-wheelers roar past at 70 mph with just 10 yards between them, you\u2019ll probably think they are dangerously close. In this high-tech age, that may no longer be true….<\/p>\n","protected":false},"author":7,"featured_media":5425,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[61,47],"tags":[],"_links":{"self":[{"href":"http:\/\/moovafrica.com\/news\/wp-json\/wp\/v2\/posts\/5421"}],"collection":[{"href":"http:\/\/moovafrica.com\/news\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/moovafrica.com\/news\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/moovafrica.com\/news\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"http:\/\/moovafrica.com\/news\/wp-json\/wp\/v2\/comments?post=5421"}],"version-history":[{"count":2,"href":"http:\/\/moovafrica.com\/news\/wp-json\/wp\/v2\/posts\/5421\/revisions"}],"predecessor-version":[{"id":5426,"href":"http:\/\/moovafrica.com\/news\/wp-json\/wp\/v2\/posts\/5421\/revisions\/5426"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/moovafrica.com\/news\/wp-json\/wp\/v2\/media\/5425"}],"wp:attachment":[{"href":"http:\/\/moovafrica.com\/news\/wp-json\/wp\/v2\/media?parent=5421"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/moovafrica.com\/news\/wp-json\/wp\/v2\/categories?post=5421"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/moovafrica.com\/news\/wp-json\/wp\/v2\/tags?post=5421"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}