| dc.contributor.advisor | Nigel H.M. Wilson and Carl D. Martland. | en_US |
| dc.contributor.author | Lee, Derek Sze-Ming, 1978- | en_US |
| dc.contributor.other | Massachusetts Institute of Technology. Dept. of Civil and Environmental Engineering. | en_US |
| dc.date | A terminal is a critical location that can affect both service quality and capacity of a rail line. With increasing ridership and rising expectation on rail service quality, terminal capacity and performance have become a major concern for transit agencies. Recent operations data from the Massachusetts Bay Transportation Authority (MBTA) and Chicago Transit Authority (CTA) reveals that train congestion exists at key terminals during peak hours, suggesting that capacity of their terminals might have been reached. This thesis proposes a framework and specific models for the analysis of transit terminal capacity and performance. The key factors that affect terminal capacity and performance of a high-intensity terminal were found to be train arrival process at terminal, scheduled train recovery time, and length of peak operations. A simulation model was developed and shown to be a useful tool to predict performance of a 2-track stub-end terminal under alternative schedule and operating conditions. The proposed framework and models were applied to study the CTA Red Line 95th Street terminal. The minimum sustainable train headway that the terminal can support was found to be 2.5 minutes, where practical capacity of the terminal is a function of acceptable train delay. Human oversight of operations was found to be a critical element of the current terminal operations, allowing reliable operations despite schedule weaknesses and variability in train and terminal processes. The case study concluded that 9 5th terminal is not the governing constraint on line headway; future research is needed to identify the constraining point(s) in other parts of the rail line. | en_US |
| dc.date.accessioned | 2005-08-23T19:42:43Z | |
| dc.date.available | 2005-08-23T19:42:43Z | |
| dc.date.copyright | 2002 | en_US |
| dc.date.issued | 2002 | en_US |
| dc.identifier.uri | http://hdl.handle.net/1721.1/8381 | |
| dc.description | Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2002. | en_US |
| dc.description | Includes bibliographical references (p. 124). | en_US |
| dc.description.statementofresponsibility | by Derek Sze-Ming Lee. | en_US |
| dc.format.extent | 124, [17] p. | en_US |
| dc.format.extent | 10223679 bytes | |
| dc.format.extent | 10223433 bytes | |
| dc.format.mimetype | application/pdf | |
| dc.format.mimetype | application/pdf | |
| dc.language.iso | eng | en_US |
| dc.publisher | Massachusetts Institute of Technology | en_US |
| dc.rights | M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission. | en_US |
| dc.rights.uri | http://dspace.mit.edu/handle/1721.1/7582 | |
| dc.subject | Civil and Environmental Engineering. | en_US |
| dc.title | Understanding capacity and performance of urban rail transit terminals | en_US |
| dc.type | Thesis | en_US |
| dc.description.degree | S.M. | en_US |
| dc.contributor.department | Massachusetts Institute of Technology. Department of Civil and Environmental Engineering | |
| dc.identifier.oclc | 50573727 | en_US |
