ESTIMATION OF EMERGENCY TRANSPORTATION TIME USING INTEGRATED SURVEY DATA OF AMBULANCE AND PAVEMENT

Abstract

In this study, we conducted an ambulance probe survey and a road surface condition survey on long-distance ambulance transport routes in Hokkaido, and analyzed the effect of road surface conditions on the ambulance driving speed using a statistical model. Furthermore, using the above models, the transportation time was estimated for each pavement maintenance scenario. First, it was clarified that not only the road structure but also road surface damage such as crack ratio, IRI, and number of low-temperature cracks affect the driving speed reduction. Next, it was shown that the transportation time was reduced by about 2 minutes in the scenario of simple repair of a section with one or more low-temperature cracks in 100 m. Finally, we compared these scenarios and proposed pavement management that contributes to reducing the transportation time of ambulance.