01593637

Component

Nationwide, there is a growing realization that there are valuable benefits to using the existing roadway facilities to their full potential rather than expanding capacity in a traditional way. Currently, state DOTs are looking for cost-effective transportation solutions to mitigate the growing congestion and increasing funding gaps. Innovative road space management strategies like narrowing of multiple lanes (three or more) and shoulder width to add a lane enhances the utilization while eliminating the costs associated with constructing new lanes. Although this strategy (among many) generally leads to better mobility, identifying optimal corridors is a challenge and may affect the benefits. Further, there is a likelihood that added capacity may provide localized benefits, at the expense of system level performance measures (travel time and crashes) because of relocation of traffic operational bottlenecks. This paper develops a novel transportation programming and investment decision method to identify optimal corridors for adding capacity in the network by leveraging lane widths. The methodology explicitly takes into consideration the system level benefits and safety. The programming compares two conflicting objectives of system travel time and safety benefits to find an optimal solution.

This paper was sponsored by TRB committee ADA50 Standing Committee on Transportation Programming and Investment Decision-Making. Alternate title: Transportation Programming and Optimal Decision Making for Road Space Management Strategies

01584066

16-5003

English

20p

2016

Transportation Research Board 95th Annual Meeting

Digital/other

Figures; Maps; References; Tables

Cost effectiveness; Decision making; Highway capacity; Highway design; Highway facilities; Optimization; State departments of transportation

Highways; Planning and Forecasting

Transportation Research Board Annual Meeting 2016 Paper #16-5003

TRIS, TRB, ATRI

Jan 12 2016 6:11PM