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Impact of left lane truck restriction strategies on multilane highways in Louisiana : a literature review.
  • Published Date:
    2009-04-01
  • Language:
    English
Filetype[PDF-1.18 MB]


Details:
  • Report Number:
    09-ITA
  • Resource Type:
  • Geographical Coverage:
  • NTL Classification:
    NTL-OPERATIONS AND TRAFFIC CONTROLS-Traffic Control Devices ; NTL-OPERATIONS AND TRAFFIC CONTROLS-Traffic Flow ;
  • Format:
  • Description:
    Truck lane restriction strategies (TLRS) are a means of managing truck traffic on highways by prohibiting trucks from using certain lanes to minimize interaction between trucks and other vehicles. The purpose of this study is to review the literature with respect to past studies of truck lane restrictions in the United States with the intention of determining whether applying them to access-controlled and non access-controlled multilane highways in Louisiana would bring any safety or operational benefits. A literature review, an opinion survey among motorists in Louisiana, and a survey of practice among state Departments of Transportation (DOTs) was conducted to establish an information base on which to base a decision. From the results of the investigation, it is recommended that, in general, TLRS only be applied to controlled access facilities with three or more lanes in each direction, unless an engineering study can justify the application of TLRS to a particular facility. It is not recommended that truck lane restrictions be used on non controlled access highways. When applied, truck lane restrictions should prohibit trucks from using left lanes rather than restrict trucks to use right lanes only The major advantage of TLRS appears to be in their general contribution toward improved safety, while their impact on speed, travel time, flow, speed differential, impedance, and lane changing is marginal. Some of the significant costs of introducing TLRS involve pavement damage if truck lane restrictions concentrate trucks on a limited set of lanes and the difficulty of entering a freeway where there are three or fewer lanes in each direction, high traffic volumes, and a high percentage of trucks in the traffic stream.

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