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INSTRUMENTATION DEVELOPMENT AND CONTRIBUTIONS
OUTSIDE THE UNITED STATES
INFORMAL DISCUSSION OF FREEWAY OPERATIONS IN
accidents accomplishments in freeway all-purpose road autobahn automatically autostrada average speed California Division capacity carriageway changeable signs changeable-message signs Chicago closed-circuit television Committee on Freeway concept congestion control center control system corridor delay density detection displayed diversion Division of Highways drivers electronic emergency emergency telephones Engineering entrance ramp equipment facility Fast vehicles freeway network freeway operations freeway surveillance freeway system freeway traffic management Hanshin Hanshin Expressway incidents indicating installed instrumentation intervals Kennedy Expressway km/hr lamp lane Lincoln Tunnel Lodge Freeway loop detectors maintenance major measure metering mimic diagram motorists Motorway M4 Nagoya-Kobe on-ramps operational problems percent police ramp control ramp metering reduced response roadway rural freeways safety signals surveillance and control symbols telephone Texas Transportation Institute tion Tokyo traf traffic conditions traffic flow theory traffic operations tunnel traffic urban freeways variable-message signs vehicles per mile