What is the approx time/distance to make a lane change?

'What Is' type questions related to highway safety, accident reconstruction and vehicle simulation
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brian
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Joined: Tue Jul 14, 2009 10:52 am

What is the approx time/distance to make a lane change?

Post by brian » Tue May 18, 2010 2:35 pm

Q: What is the approximate time/distance for a vehicle to make a lane change?
A: As a part of a FHWA curve study we investigated cross slope design and in particular the effect of cross slope design on passing maneuvers for vehicles and trucks:
"HVOSM Studies of Highway Centerline Crowns", Contract DOT-FH-11-9575, October 1983 J.C. Glennon, T.R. Neuman, B.G. McHenry.
At the time of the research the only research found that directly measured the passing path of vehicles under normal highway operations was in the following:
  • "Frictional Requirements for High speed passing maneuvers”, Glennon, Texas Transportation Institute Research report No 134-7, July 1971 and
    Passing performance Measurements related to Sight Distance design”,Weaver & Glennon, Texas Transportation Institute report 134-6,, June 1971
Here are a couple more recent studies which may include additional information: Figures from Centerline Crown Study:
passing maneuver.jpg
passing maneuver.jpg (34.6 KiB) Viewed 3423 times
passing maneuver table.jpg
passing maneuver table.jpg (41.39 KiB) Viewed 3423 times
passing maneuver table trucks.jpg
passing maneuver table trucks.jpg (70.55 KiB) Viewed 3423 times
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MSI
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Re: What is the approx time/distance to make a lane change?

Post by MSI » Tue Jul 27, 2010 11:51 am

2010: SAE Paper published at the 2010 Congress on Left turns and Lane changes for Tractor Semitrialers:
Tractor Semitrailer Left Turns and Lane Changes
SAE Paper 2010-01-0049, Merala & White
Abstract:Data regarding the characteristics of left turns and lane changes performed by articulated tractor semitrailer combination vehicles in urban environments are presented. Previous studies have quantified acceleration rates for tractor semitrailers travelling straight, and for automobiles making left turns, but there is a gap in the literature regarding heavy vehicle acceleration during left turns. Likewise there is a lack of published data regarding the duration of lane changes made by these vehicles at highway speeds.
The following are some of the tables/figures:
lanechange1.jpg
lanechange1.jpg (31.61 KiB) Viewed 3384 times
lanechangetimes1.jpg
lanechangetimes1.jpg (22.99 KiB) Viewed 3384 times
lanechangetimes2.jpg
lanechangetimes2.jpg (24.62 KiB) Viewed 3384 times
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Visit McHenrySoftware.com for technical information & software.
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