@article{ref1,
title="Improved Highway-Railway Interface for the Preempt Trap",
journal="Transportation research record",
year="2008",
author="Sun, Xiaoduan and Urbanik, Tom and Skehan, Sean and Ablett, Matt",
volume="2080",
number="",
pages="1-7",
abstract="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 />",
language="en",
issn="0361-1981",
doi="10.3141/2080-01",
url="http://dx.doi.org/10.3141/2080-01"
}