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The Economic, Environmental, and Safety Impacts of Highway Access Control

Description

Improved management of highway operations is one solution to the problem of more cars and trucks using highways than the highways were designed to hold. Better management of highway operations can be achieved, in part, by controlling vehicular access to adjacent properties and cross streets. This tactic of access management is relatively effective and economical.
  
This package of three models represents access management measures applied to three highway segments in the Las Vegas area. The models allow the user to adjust driveway spacing, implement different driveway consolidation strategies, and install medians in the highway segment and then veiw the effect of these changes over time on road safety, economic activity, and carbon emissions. The purpose of this model is to quantify the environmental benefits (due to reduced emissions) and the economic impacts on businesses in areas where access management techniques were applied.

The access management measures which can be adjusted by the user (driveway spacing, implement driveway consolidation strategies, and median installations) serve to limit the number of access points to the highway. The limitation of access reduces congestion and has been shown to increase safety. Additional details on the construction of this model can be found in the accompanying report.

Basic Model Layout

 

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