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 in highway systems are susceptible to damage from earthquakes, causing traffic capacity loss leading to a serious impact on surrounding areas. To better prepare fo...
Main Authors: | , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
MDPI AG
2021-04-01
|
Series: | Applied Sciences |
Subjects: | |
Online Access: | https://www.mdpi.com/2076-3417/11/7/3226 |
id |
doaj-3da4fca6db2b4d93b626c451841382cb |
---|---|
record_format |
Article |
spelling |
doaj-3da4fca6db2b4d93b626c451841382cb2021-04-03T23:02:56ZengMDPI AGApplied Sciences2076-34172021-04-01113226322610.3390/app11073226Analysis of Macroscopic Traffic Network Impacted by Structural Damage to Bridges from EarthquakesJoongmin Cho0Young-Joo Lee1Seongkwan Mark Lee2Ki Han Song3Wonho Suh4Department of Smart City Engineering, Hanyang University ERICA Campus, Ansan 15588, KoreaDepartment of Urban and Environmental Engineering, Ulsan National Institute of Science and Technology, Ulsan 44919, KoreaDepartment of Civil Engineering, King Saud University, Riyadh 11421, Saudi ArabiaDepartment of Aviation, Korea Transport Institute, Sejong 30147, KoreaDepartment of Smart City Engineering, Hanyang University ERICA Campus, Ansan 15588, KoreaHighway systems play a key role in providing mobility to society, especially during emergency situations, including earthquakes. Bridges in highway systems are susceptible to damage from earthquakes, causing traffic capacity loss leading to a serious impact on surrounding areas. To better prepare for such scenarios, it is important to estimate capacity loss and traffic disruptions from earthquakes. For this purpose, a traffic-capacity-analysisbased methodology was developed to model the performance of a transportation network immediately following an earthquake using a macroscopic multi-level urban traffic planning simulation model EMME4. This method employs the second order linear approximation (SOLA) traffic assignment and calculates total system travel time for various capacity loss scenarios due to bridge damage from earthquakes. It has been applied to Pohang City in Korea to evaluate the performance of traffic networks in various situations. The results indicate a significant increase in travel time and a decrease in travel speed as the intensity of an earthquake increases. However, the impact on traffic volume varies depending on the bridges. It is assumed that the location of the bridges and traffic routing patterns might be the main reason. The results are expected to help estimate the impact on transportation networks when earthquakes cause traffic capacity loss on bridges.https://www.mdpi.com/2076-3417/11/7/3226bridge traffic analysissystem travel timemacroscopic assignmentearthquake analysis |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Joongmin Cho Young-Joo Lee Seongkwan Mark Lee Ki Han Song Wonho Suh |
spellingShingle |
Joongmin Cho Young-Joo Lee Seongkwan Mark Lee Ki Han Song Wonho Suh Analysis of Macroscopic Traffic Network Impacted by Structural Damage to Bridges from Earthquakes Applied Sciences bridge traffic analysis system travel time macroscopic assignment earthquake analysis |
author_facet |
Joongmin Cho Young-Joo Lee Seongkwan Mark Lee Ki Han Song Wonho Suh |
author_sort |
Joongmin Cho |
title |
Analysis of Macroscopic Traffic Network Impacted by Structural Damage to Bridges from Earthquakes |
title_short |
Analysis of Macroscopic Traffic Network Impacted by Structural Damage to Bridges from Earthquakes |
title_full |
Analysis of Macroscopic Traffic Network Impacted by Structural Damage to Bridges from Earthquakes |
title_fullStr |
Analysis of Macroscopic Traffic Network Impacted by Structural Damage to Bridges from Earthquakes |
title_full_unstemmed |
Analysis of Macroscopic Traffic Network Impacted by Structural Damage to Bridges from Earthquakes |
title_sort |
analysis of macroscopic traffic network impacted by structural damage to bridges from earthquakes |
publisher |
MDPI AG |
series |
Applied Sciences |
issn |
2076-3417 |
publishDate |
2021-04-01 |
description |
Highway systems play a key role in providing mobility to society, especially during emergency situations, including earthquakes. Bridges in highway systems are susceptible to damage from earthquakes, causing traffic capacity loss leading to a serious impact on surrounding areas. To better prepare for such scenarios, it is important to estimate capacity loss and traffic disruptions from earthquakes. For this purpose, a traffic-capacity-analysisbased methodology was developed to model the performance of a transportation network immediately following an earthquake using a macroscopic multi-level urban traffic planning simulation model EMME4. This method employs the second order linear approximation (SOLA) traffic assignment and calculates total system travel time for various capacity loss scenarios due to bridge damage from earthquakes. It has been applied to Pohang City in Korea to evaluate the performance of traffic networks in various situations. The results indicate a significant increase in travel time and a decrease in travel speed as the intensity of an earthquake increases. However, the impact on traffic volume varies depending on the bridges. It is assumed that the location of the bridges and traffic routing patterns might be the main reason. The results are expected to help estimate the impact on transportation networks when earthquakes cause traffic capacity loss on bridges. |
topic |
bridge traffic analysis system travel time macroscopic assignment earthquake analysis |
url |
https://www.mdpi.com/2076-3417/11/7/3226 |
work_keys_str_mv |
AT joongmincho analysisofmacroscopictrafficnetworkimpactedbystructuraldamagetobridgesfromearthquakes AT youngjoolee analysisofmacroscopictrafficnetworkimpactedbystructuraldamagetobridgesfromearthquakes AT seongkwanmarklee analysisofmacroscopictrafficnetworkimpactedbystructuraldamagetobridgesfromearthquakes AT kihansong analysisofmacroscopictrafficnetworkimpactedbystructuraldamagetobridgesfromearthquakes AT wonhosuh analysisofmacroscopictrafficnetworkimpactedbystructuraldamagetobridgesfromearthquakes |
_version_ |
1721543428068605952 |