Abstract

The current practice in macroscopic simulation of urban networks is to treat minor road discharge at priority T-intersection as arrivals at the junction. Present capacity formulas do not explicitly consider type of control, i. e. stop or yield sign. This study is composed of three parts. The first part deals with the development of a priority intersection capacity formula that is sensitive to control type. The second part discusses the application of the developed capacity formula into a macroscopic simulation model. Finally, in order to deal with the yield-controlled movement to approximate stop control operation, the capacity formula was further modified assuming a linear shift of operational discipline from yield to stop control.

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