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The Last Impaired Mile: Challenges of Impaired Mobility in a Multimodal World (BTS-39)

Impaired-joint
January 1, 2025

Project Underway: The objectives of this research are to develop an improved understanding of the scope of the “last mile” problem in multimodal environments, explore what could be altered to change driver behavior and develop a toolkit of practical strategies.

Project Overview

Project Underway

The traffic safety community has worked for decades to put a taboo on impaired driving. While there remains a great deal of work still to do, progress has been made. For example, in recent years there has been anecdotal evidence of an increase in the number of individuals who drive to the end of a transit or commuter rail line, take transit or commuter rail into the city where they become impaired, take transit or commuter rail back to their car, and then drive home once returning to their car. This creates a new challenge, especially in suburban and rural areas which have limited options for traveling that so-called “last mile”. While progress has been made in reducing the overall number of impaired miles traveled, addressing safety concerns associated with the “last mile” remains a significant challenge. 

The objectives of this research are to 1) develop an improved understanding of the scope of the “last mile” problem in multimodal environments; 2) explore behavioral and risk factors that could be altered to change driver behavior; and 3) develop a toolkit of practical strategies for state highway safety offices and other stakeholders to help close the gap.

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