Abstract
This paper deals with the derivation of analytical formulae to estimate the effective capacity at freeway merges in a multilane context. It extends two previous papers that are based on the same modeling framework but that are restricted to a single lane on the freeway (or to the analysis of the right lane only). The analytical expression for the one-lane capacity is recursively applied for all lanes. Lane-changing maneuvers (mandatory for the on-ramp vehicles and discretionary for others) are divided into two non-overlapping local merging areas. Discretionary lane-changes are transformed into a lane-changing flow using an appropriate analytical formula. This defines a system of equations whose unknowns are the capacity on all lanes and the inserting flow coming from the on-ramp. A sensitivity analysis shows that vehicle acceleration and the truck ratio are the most influential parameters for the total capacity. The analytical formulae are proven to match with numerical results from a traffic simulator that fully describes vehicle dynamics. Finally, they provide very good estimates when compared to experimental data for an active merge on the M6 freeway in UK.
Original language | English |
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Title of host publication | Transportation Research Board 95th annual meeting |
Subtitle of host publication | Washington, United States |
Publisher | Transportation Research Board (TRB) |
Pages | 1-9 |
Number of pages | 9 |
Volume | 2560 |
DOIs | |
Publication status | Published - 2016 |
Event | Transportation Research Board 95th annual meeting - Washington, United States Duration: 10 Jan 2016 → 14 Jan 2016 Conference number: 95 |
Conference
Conference | Transportation Research Board 95th annual meeting |
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Abbreviated title | TRB 95 |
Country/Territory | United States |
City | Washington |
Period | 10/01/16 → 14/01/16 |
Bibliographical note
Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-careOtherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.
Keywords
- Freeways
- Highway capacity
- Lane changing
- Mathematical analysis
- Merging area
- Multilane highways
- Sensitivity analysis
- traffic flow
Fingerprint
Dive into the research topics of 'Capacity drops at merges: Analytical expressions for multilane freeways'. Together they form a unique fingerprint.Prizes
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Greenshields Prize 2016
Leclercq, Ludovic (Recipient), Marczak, F (Recipient), Knoop, V.L. (Recipient) & Hoogendoorn, S.P. (Recipient), 2016
Prize: Prize (including medals and awards)