MIT1_258JS10_lec15

MIT1_258JS10_lec15 - Dwell Time Models Outline 1. Dwell...

Info iconThis preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon
Dwell Time Models Nigel Wilson 1.258J/11.541J/ESD.226J Spring 2010, Lecture 15 1 Outline 1. Dwell Time Theory 2. Bus Dwell Time Model 1 3. Light Rail Dwell Time Model 2 4. Heavy Rail Dwell Time Model 3 1 Milkovits, M.N., “Modeling the Factors Affecting Bus Stop Dwell Time: Use of Automatic Passenger Counting, Automatic Fare Counting, and Automatic Vehicle Location Data." Transportation Research Record: Journal of the Transportation Research Board, pp pp 125-130 (2008). 2 Wilson, N.H.M. and T. Lin, "Dwell-Time Relationships for Light Rail Systems," Transportation Research Record #1361 , 1993, pp. 296-304. 3 Puong, A., "Dwell Time Model and Analysis for the MBTA Red Line." Internal memo, MIT, March 2000.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Dwell Time Theory Nigel Wilson 1.258J/11.541J/ESD.226J Spring 2010, Lecture 15 2 • Vehicle dwell time affects: system performance service quality • A critical element in vehicle bunching resulting in: high headway variability high passenger waiting times uneven passenger loads • Dwell time impact on performance depends on: stop/station spacing mean dwell as proportion of trip time mean headway operations control procedures EXAMPLES: Commuter rail ---> little impact of dwell time on performance Long, high-frequency bus route ---> major impact
Background image of page 2
Dwell Time Theory Nigel Wilson 1.258J/11.541J/ESD.226J Spring 2010, Lecture 15 3 • Dwell time depends on many factors: Human, modal, operating policies & practices, mobility, weather, etc. • For a given system we have the following possible models: 1. Single door, no congestion and interference: DOT = a + b(DONS) + c(DOFFS) 2. Single door with congestion and interference: DOT = a + b(DONS) + c(DOFFS) + d(DONS+DOFFS)(DTD)
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Dwell Time Theory (cont'd) Nigel Wilson 1.258J/11.541J/ESD.226J Spring 2010, Lecture 15 4 • For a given system we have the following possible models . .. 3. Single car with m doors:
Background image of page 4
Image of page 5
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 18

MIT1_258JS10_lec15 - Dwell Time Models Outline 1. Dwell...

This preview shows document pages 1 - 5. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online