TY  - RPRT
TI  - Pedestrian movement on ramps - a preliminary investigation 
AU  - Turner, George E
AU  - Collins, Belinda L
PY  - 1979
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS IR 79-1729
DO  - 10.6028/NBS.IR.79-1729
ER  -