Behavior of time headways between vehicles as they traverse section of highway immediately upstream of entrance ramp is termed "gap stability" and is described by conditional frequency function which gives relative frequency with which gap, observed to be of given size at some upstream location, changes to certain size in merging area; relationships are developed for predicting mean and standard deviation of this normal distribution for given distance and given speed conditions; relationship, developed from interaction of gap stability and gap acceptance characteristics, is suggested as rational control function for merging control.
Gap stability and its application to freeway merging control systems
Traffic Eng
Traffic Engineering ; 38 , n 6
1968
Article (Journal)
English
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