Transit Modeling Guidance by Rosella Picado and ... - FSUTMSOnline
Transit Modeling Guidance by Rosella Picado and ... - FSUTMSOnline
Transit Modeling Guidance by Rosella Picado and ... - FSUTMSOnline
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Travel Time Feedback: How?<br />
Combine link volumes of previous feedback loops with a<br />
decreasing weight (to ensure convergence)<br />
Link Flow<br />
n+<br />
1<br />
= Link Flow<br />
n<br />
× (1−1 /<br />
n) + Link Flow<br />
n−1<br />
× (1 /<br />
n)<br />
Method of<br />
successive<br />
averages<br />
Compute new travel time <strong>by</strong> applying the speed-delay<br />
functions to the “averaged” volume<br />
Exit feedback loop when the relative change in link<br />
volumes <strong>and</strong>/or travel times is small
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