Identification of Bottlenecks on a Toll Network of Highways

This study demonstrates a strategy for identifying bottlenecks on a network of roadways containing toll facilities. The network is divided into 295 highway segments, 58 of which contain toll facilities. It successfully implements TNCC, the Toll Network Capacity Calculator methodology, to calculate capacities of the 58 highway segments containing toll facilities. The capacities of the remaining 237 highway segments were obtained by the use of traditional capacity calculation methods borrowed from the Highway Capacity Manual 2000. Observed volumes and comparison checks of the Plazas' capacities with the capacities of the highway segments prior to the toll facilities supports the identification of bottlenecks on the network.