Documents of type: Research

Bridging the Gaps: How Quality and Quantity of a Connected Bikeway Network Correlates with Increasing Bicycle Use

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Birk, M. and R. Geller, “Bridging the Gaps: How Quality and Quantity of a Connected Bikeway Network Correlates with Increasing Bicycle Use,” Presented at the Transportation Research Board 85th Annual Meeting (2006)

Channelized Right-Turn Lanes

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NCHRP Project 03-89, “Channelized Right-Turn Lanes,” Active TRB Project. MRIGlobal submitted the final report for this project in July of 2011. As indicated in the summary for NCHRP Project 3-72, the study of the channelized right-turn lanes exceeded the available budget and so was deemed outside the scope of that project. Subsequently, NCHRP Project 03-89 then directly focused on the design and use of channelized right-turn lanes.

Practices in Access Management

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Demosthenes, P. “Practices in Access Management,” ITE Journal, Institute of Transportation Engineers, Washington, D.C., vol 80, issue 1, (January 2010, pp. 46 – 51)

This article provides practical guidance on developing and implementing an access management program. It includes guidance relative to access classification systems, access design practices, variances and corridor access management plans. It will be especially useful in the chapters on access classification systems and state program development.

Design/Development Principles for Livable Suburban Roadways

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This research investigates the interaction between road section design and adjacent site design with the goal of pairing roadway design criteria (in terms of the maximum number of lanes and design speed) with urban design criteria (in terms of levels of activity, location of access, and relation to street). The research hypothesizes that a minimum of three arterial roadway prototypes is needed to serve travel demands and that there are three types of activity levels in suburban communities.

Designing Walkable Urban Thoroughfares

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The context sensitive solutions (CSS) approach keys thoroughfare types with place types that reference aspects of the roadside context. An implicit goal of CSS is to reduce the dominance of roadway capacity in roadway design decisions by more directly integrating other modal and community design considerations – particularly those design details critical to supporting non-auto modes in the urban context. The approach also strives to maintain an optimal balance between desired roadway operations and the roadside context.

Basic elements of the approach are as follows:

Designing Walkable Urban Thoroughfares

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Click here if you liked this information

The context sensitive solutions (CSS) approach keys thoroughfare types with place types that reference aspects of the roadside context. An implicit goal of CSS is to reduce the dominance of roadway capacity in roadway design decisions by more directly integrating other modal and community design considerations – particularly those design details critical to supporting non-auto modes in the urban context. The approach also strives to maintain an optimal balance between desired roadway operations and the roadside context.
Basic elements of the approach are as follows:

Modeling Operating Speed

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TRB’s Transportation Research E-Circular E-C151: Modeling Operating Speed is a synthesis of existing operating speed models developed in different regions of the world. The models are grouped according to roadway type. 

Limitations and deficiencies in existing operating speed models and suggestions for future work are also identified. 

Practitioner perspectives on the potential use of speed prediction models in road design practice are provided from both the perspective of the United States and the international community.

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