Delay Predictive Modeling on the Diverge Sections of Urban Freeway Interchange based on Real-Time Traffic Characteristics

From the results of the real-time traffic characteristic analyses, construction and verification for the delay predictive models on the diverge sections of the urban freeway interchange under the study, the following conclusions were drawn: i) Variables selected were considerably correlated with the delay predictive modeling on the diverge sections of urban freeway interchange under the study. Particularly the occupancy showed a higher explanatory power for the delay predictive model construction. ii) The delay predictive models showed a higher explanatory power in the inbound direction and the daytime period, but a lower explanatory power in the outbound direction and the nighttime period. iii) The urban freeway traffic management system (UFTMS) measure like the variable message sign(VMS) was thought to be more effective on the inbound exit ramp in the morning rush hour .