Analysis of Macroscopic Traffic Network Impacted by Structural Damage to Bridges from Earthquakes

Highway systems play a key role in providing mobility to society, especially during emergency situations, including earthquakes. Bridges highway are susceptible damage from earthquakes, causing traffic capacity loss leading serious impact on surrounding areas. To better prepare for such scenarios, it is important estimate and disruptions For this purpose, traffic-capacity-analysisbased methodology was developed model the performance of transportation network immediately following an earthquake using macroscopic multi-level urban planning simulation EMME4. This method employs second order linear approximation (SOLA) assignment calculates total system travel time various scenarios due bridge It has been applied Pohang City Korea evaluate networks situations. The results indicate significant increase decrease speed as intensity increases. However, volume varies depending bridges. assumed that location bridges routing patterns might be main reason. expected help when earthquakes cause