Modeling the Effect of a Road Construction Project on Transportation System Performance

Principle Investigator: Srinivas S. Pulugurtha
Research Staff: Venu Madhav Kukkapalli
Funding Agency: United States Department of Transportation / San Jose State University

Road construction projects create physical changes on roads that result in capacity reduction and travel time escalation during the construction project period. The reduction in the posted speed limit, the number of lanes, lane width and shoulder width at the construction zone makes it difficult for the road to accommodate high traffic volume. The main objective of this research was to model the effect of a road construction project on travel time at road link-level and help improve the mobility of people and goods through dissemination or implementation of proactive solutions. The results indicate that a decrease in travel time was observed during the construction project period on the freeway links when compared to the before construction project period. Contrarily, an increase in travel time was observed during the construction project period on the connecting arterial street links when compared to the before construction project period.