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State, regional, and local agencies need an established cost estimation method to improve the accuracy of programmed project funds. In particular, accurately estimating the cost of independent bicycle and pedestrian facilities helps improve prioritization, decision making, and the efficient allocation of funds for bicycle and pedestrian projects. The cost estimates vary by category as well as by the construction cost element. Obtaining cost data for an adequate number of projects of each facility type, although important, is challenging because of either the lack of available information or a reluctance in the sharing of information. This paper ( a) outlines methods to achieve a statistically significant sampling of cost data for bicycle and pedestrian facilities, ( b) addresses challenges associated with collecting the data from various agencies, and ( c) examines variations to better understand the estimates of individual construction cost elements. Recommendations pertaining to cost categories and cost elements that can help planners and engineers estimate the costs of independent bicycle and pedestrian projects are discussed.

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