The objective of this project was to determine whether any innovative or non-standard traffic-control-devices (TCDs) could be recommended as improvements to safety at passive (i.e., no flashing lights or automatic gates) rail-highway grade crossings. The focus was on low-cost treatments that could be widely implemented. (A) This report may be accessed by Internet users at http://gulliver.trb.org/publications/nchrp/nchrp_rpt_470-a.pdf / http://gulliver.trb.org/publications/nchrp/nchrp_rpt_470-b.pdf
Abstract