Pedestrian/Bicyclist Warning Devices and Signs at Highway-Rail and Pathway-Rail Grade Crossings 04/02/2013
Traveler Information Systems and Wayfinding Technologies in Transit Systems: Summary of State-of-the-Practice and State-of-the-Art 05/02/2011
SafeTrip 21 Initiative: Networked Traveler Foresighted Driving Field Experiment Final Report 06/02/2011