000 00556 a2200253 4500
001 170512
020 _a
041 _aeng
080 _a625.7
245 _aVariables influencing spot-speed characteristics :
250 _a
260 _aWashington, D. C.
260 _bHRB
260 _c1966
300 _a41
300 _c
856 _uTRB
490 _aGE DM S : 1977 - 78
100 _aTransportation Research Board
700 _a
650 _a
650 _aTraffic control and operations,Traffic flow,Traffic measurements
942 _cPP
942 _2UDC
999 _c194334
_d194334