== Abstract ==

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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 enhance 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 the 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.

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Document type: Article

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== Full document ==

<pdf>Media:Draft_Content_872371046-beopen1167-1131-document.pdf</pdf>

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== Original document ==

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The different versions of the original document can be found in:

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* [http://downloads.hindawi.com/journals/jat/2017/6354690.pdf http://downloads.hindawi.com/journals/jat/2017/6354690.pdf] under the license https://creativecommons.org/licenses/by

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* [http://dx.doi.org/10.1155/2017/6354690 http://dx.doi.org/10.1155/2017/6354690] under the license cc-by

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* [http://downloads.hindawi.com/journals/jat/2017/6354690.pdf http://downloads.hindawi.com/journals/jat/2017/6354690.pdf],

: [http://downloads.hindawi.com/journals/jat/2017/6354690.xml http://downloads.hindawi.com/journals/jat/2017/6354690.xml],

: [http://dx.doi.org/10.1155/2017/6354690 http://dx.doi.org/10.1155/2017/6354690]

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* [http://dx.doi.org/10.1155/2017/6354690 http://dx.doi.org/10.1155/2017/6354690],

: [https://doaj.org/toc/0197-6729 https://doaj.org/toc/0197-6729],

: [https://doaj.org/toc/2042-3195 https://doaj.org/toc/2042-3195] under the license http://creativecommons.org/licenses/by/4.0/

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* [https://www.hindawi.com/journals/jat/2017/6354690 https://www.hindawi.com/journals/jat/2017/6354690],

: [http://downloads.hindawi.com/journals/jat/2017/6354690.pdf http://downloads.hindawi.com/journals/jat/2017/6354690.pdf],

: [https://core.ac.uk/display/88193433 https://core.ac.uk/display/88193433],

: [https://doaj.org/article/41c6076ca6054b439c1663a2062d36ee https://doaj.org/article/41c6076ca6054b439c1663a2062d36ee],

: [https://academic.microsoft.com/#/detail/2575549231 https://academic.microsoft.com/#/detail/2575549231]

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