Traffic signal preemption

#	Item
61	Highway–Railroad Grade Crossing Collision Midland, Texas November 15, 2012 Add to Reading List Source URL: www.ntsb.gov Language: English - Date: 2013-12-05 10:29:41 Level crossing National Transportation Safety Board Traffic signal preemption Traffic light Bourbonnais Illinois train accident Fox River Grove bus–train collision Transport Land transport Traffic signals
62	PDF Document Add to Reading List Source URL: www.oregon.gov Language: English - Date: 2012-05-20 18:49:16 Land transport Traffic law Traffic light Traffic signal preemption Manual on Uniform Traffic Control Devices Transport Traffic signals Road transport