Systems of operational surveillance of density type and closed circuit television type, integrated with control center and ramp intersection signal controllers; computer mastered traffic signal control system on city streets for handling "off ramp" traffic of reversible roadways; problem of metering traffic entering freeway from other freeways where no signalized intersection exists.
Proposed surveillance system on Seattle freeway
Traffic Eng
Traffic Engineering ; 32 , n 9
1962
4 pages
Article (Journal)
English
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