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P A Barricklow, M S Jacobson, 2004 .

GUIDE FOR TRAFFIC SIGNAL PREEMPTION NEAR RAILROAD GRADE CROSSING

Thomas Urbanik, S R Sunkari, Roelof Engelbrecht, 2000 .

IMPROVING SAFETY AT SIGNALIZED INTERSECTIONS NEAR VERTICAL CURVES

Dominique Lord, P A Barricklow, M S Jacobson, 2004 .