K W Heathington

发表

FIELD EVALUATION OF A FOUR-QUADRANT GATE SYSTEM FOR USE AT RAILROAD-HIGHWAY GRADE CROSSINGS

Stephen H Richards, K W Heathington, Daniel B. Fambro, 1989 .

Motorists' understanding of active warning devices used at railroad-highway grade crossings

K W Heathington, D B Fambro, 1984 .

USE OF CHILD-PASSENGER SAFETY DEVICES IN TENNESSEE

J W Philpot, E C Hughes, R L Perry, 1979 .