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LOS for multilane highways

Lee Vien Leong
Universiti Sains Malaysia
LOS for multilane highways was posted on December 16th, 2011 at 4:17 AM EST
regarding Chapter 14: Multilane Highways

If the FFS and flow rate for individual lane (i.e. inner lane and outer lane) at multilane highways are different then the LOS obtained will also be different. If the LOS observed for inner lane is E while the LOS obtained for outer lane is C, then which LOS should we used?

scott moore
Moore Data, LLC
RE: LOS for multilane highways was posted on December 16th, 2011 at 8:39 AM EST

It is my understanding that the definition of LOS is the average delay, stratification of performance. HCM Chapter 8 8-9. LOS is the output (density calculations) of your detailed analysis. It is a more appropriate way to communicate your results to non-transportation specialists. the danger here is to become too detailed and not any more accurate.

Gustavo Riente de Andrade
TECTRAN - T├ęcnicos em Transportes ltda
RE: LOS for multilane highways was posted on January 6th, 2012 at 9:04 PM EST

Hello.

FFS in HCM actually refers to the average free speed across all lanes, as well as the estimated LOS. The ideia of calculating LOS and other MOEs for each lane is still an academic discussion.

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