Robert Peccia & Associates


RPA provides complete traffic and transportation engineering services to clients throughout Montana and much of the United States.

RPA's engineers have completed transportation related projects for national clients including work at the National Zoo and the Smithsonian Institute, both in Washington D.C., and for NASA at the John F. Kennedy Space Center in Florida.


Our traffic experts provide transportation services to the Montana Department of Transportation and many local communities throughout Montana. For over three decades, RPA has developed urban transportation plans for Great Falls, Kalispell, Whitefish, Missoula, Helena, Bozeman, and Butte.


For these particular projects, RPA collected a variety of traffic data, developed computer models to project traffic volumes, and identified future transportation needs in each community.

We regularly complete transportation plans and studies for cities and counties throughout Montana.  We also complete traffic impact studies for clients in the private sector who are expanding their facilities or creating new commercial or residential developments.


Robert Peccia & Associates has the equipment, analytical techniques, and expertise to collect data and assess a client's future transportation needs. We strive not only to anticipate trends in traffic and transportation, but also to develop safe, innovative, and practical solutions to transportation related problems.




Urban Transportation Plans

Corridor Planning Studies

Traffic Impact Studies

Transit Plans

Safety Studies

Data Collection

Analysis of Traffic Signal Systems

Bicycle and Pedestrian Facilities Analysis

Multi-modal Transportation Plans



Robert Peccia & Associates

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