United States Department of Transportation
ROSA P serves as an archival repository of USDOT-published products including scientific findings, journal articles, guidelines, recommendations, or other information authored or co-authored by USDOT or funded partners.
As a repository, ROSA P retains documents in their original published format to ensure public access to scientific information.
[PDF-1.18 MB]
Details:
-
Alternative Title:Introducing the Resilience into the State Transportation Network : A National Center for Sustainable Transportation Research Report
-
Creators:
-
Corporate Creators:
-
Corporate Contributors:
-
Subject/TRT Terms:
-
Resource Type:
-
Geographical Coverage:
-
Corporate Publisher:
-
Abstract:California has been a leader in adopting policies to reduce greenhouse gas emissions. Meanwhile, for too long, businesses have been warning of key routes that are stretched to the breaking point. In many places across California, it takes only a single incident to cause chaos - for instance, a car accident across the intersection of I-5, I-10, and I-101. Fast-paced California businesses demand a transport network that can better cope with accidents, severe weather, not to mention ubiquitous earthquake threats. Therefore, the state is required to provide and maintain an acceptable level of service in the face of faults and any challenges to normal operations. Sacramento should be tasked to immediately identify all of the places where the road and rail networks need urgent attention in their state-wide long-range transportation plans. The transportation network is a key component to providing a better transport service for both people and goods. Reliability, vulnerability and robustness are the major characteristics that can be used to analyze a transport network. The reliability of a transport network is defined as the possibility of moving people or goods from one place to another successfully. Exploring the reliability of a road network has attracted significant attention due to the increase in natural disasters. Such natural disasters not only damage roadway connections, but also paralyze the transportation system for a remarkable period of time. To overcome this disadvantage, the reliability of a transport network can be maintained by closely monitoring and ensuring the safety of critical paths in the network so that the users can always have a reliable route for their commute. Critical paths of a transportation network are the most dependable and used paths of that network. Failure of certain paths or sub-networks, which is caused by car accidents, road maintenance, or serious road congestion, has a severe impact on the reliability of the transportation network. Several methods exist to analyze the reliability of the transport network such as the concept of connection reliability, a network reliability technique to monitor the current traffic status. In this study, a network model is developed to calculate reliability by considering the critical paths of a transportation network using the UCINET simulation tool. The implementation of this network model used two path failure strategies (selective and random) using the Betweenness Centrality as a metric. Our preliminary results show that the UCINET tool can be used to successfully estimate the reliability and to further identify the critical paths of a highway transportation network in California.
-
Format:
-
Collection(s):
-
Main Document Checksum:
-
Download URL:
-
File Type:
