The Framework of Calculating the Measures of Resilience (MOR) for Intermodal Transportation Systems

So far, there is no consent agreement on the measures of resilience (MORs) for intermodal transportation systems in the transportation community (e.g., Pamela 2006, Tierney and Bruneau 2007, and VTPI 2007). In this research, a unified framework of MORs will be developed for all transportation modes from the perspective of system users. Network-wide intermodal travel time and Level of Service (LOS) are selected as major performance indices for intermodal transportation. The percentages of performance indices that drop after a disaster are defined as MORs. Three key data, travel time, Level of Service (LOS) and OD (origin-destination) flows, are needed for using the proposed framework before and after disasters. The pre-disaster data will be collected at the state level and calculated by using regional transportation models, TRANSEARCH INSIGHT freight data, and federal Freight Analysis Framework data. The post-disaster OD flow will be estimated from weight station truck volume and surveys of major freight carriers and users. Based on the estimated freight OD, the transportation models will be re-run to calculate freight travel time and LOS. The above process will be reviewed in a case study using the Mississippi Gulf Coast. How to improve MORs in the Mississippi Gulf Coast will also be discussed. The final report will summarize the framework and procedures to use the framework and provide guidelines for further studies. The objective of this research is to develop a framework of calculating the measures of resilience (MORs) for intermodal transportation systems.