TY  - JOUR
PY  - 2008//
TI  - Improved Highway-Railway Interface for the Preempt Trap
JO  - Transportation research record
A1  - Sun, Xiaoduan
A1  - Urbanik, Tom
A1  - Skehan, Sean
A1  - Ablett, Matt
SP  - 1
EP  - 7
VL  - 2080
IS  - 
N2  - Railroad preemption is intended to improve safety at highway—railway intersections by minimizing the likelihood that a vehicle will become trapped on the crossing. However, unless sufficient time is provided to transfer right-of-way safely from the currently operating highway traffic phase, preemption can cause safety problems for highway users. Advance preemption has been used to address right-of-way transfer time issues without making the railroad warning time excessively long. The use of advance preemption without proper precautions can lead to the preempt trap. A new approach that uses improved communication has been developed and implemented to address the needs of all users at and near the highway—railway intersection. The results of a field implementation in Los Angeles, California, demonstrate the effectiveness of the new approach.<p />
LA  - en
SN  - 0361-1981
UR  - http://dx.doi.org/10.3141/2080-01
ID  - ref1
ER  -