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Manchester, NH 03102
Phone: 603-669-4664
Fax: 603-669-4350
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Title 23 of the United States Code (USC) & 134 states that it is in the national interest to encourage and promote the safe and efficient management, operation, and development of surface transportation systems that will serve the mobility needs of people and freight and foster economic growth and development within and through urbanized areas, while minimizing transportation related fuel consumption and air pollution. To accomplish all these objectives, the Metropolitan Planning Organizations (MPO), in cooperation with the State and public transit operators, are required to develop transportation plans and programs for urbanized areas of the State.

The plans and programs for each metropolitan area are required to provide for the development and integrated management and operation of transportation systems and facilities (including pedestrian walkways and bicycle transportation facilities) that will function as an intermodal transportation system for the metropolitan area and as an integral part of an intermodal transportation system for the State and the country.

Local Impact Fees and Private Roads
ITS Architecture for the SNHPC Region  

Regional Transportation Plan 
In keeping with the provisions of the Title 23 of USC, SNHPC prepares a Regional Transportation Plan (RTP) that provides for consideration of all modes of transportation, including highway, transit, rail, bicycle and pedestrian walkways, freight, and air travel. The plan is continuing, cooperative, and comprehensive, commonly referred to as “3C” process.

I-93 Widening
I-93 is a major transportation corridor for New Hampshire, both for commuters and visitors to the state, linking the greater Boston area with tourism related activities in the northern and central parts of the state. It serves as a vital link to the regional economic activities. Currently, the corridor is a 4-lane (2 lanes in each direction) interstate facility. The capacity of the highway to carry traffic has long been exceeded, due to the high growth the region has experienced. To address these capacity problems, the New Hampshire Department of Transportation is expanding the highway to 8 lanes (4 lanes in each direction). The SNHPC is currently participating in the Community Technical Assistance Program (CTAP), which is being developed through the State of New Hampshire’s Office of Energy and Planning.  CTAP is designed to help communities in the I-93 region plan for future growth.

Check the New Hampshire Department of Transportation’s I-93 Widening Web Site  

Local Trip Generation Rates
As part of its Unified Planning Work Program (UPWP), the Commission continued work on the trip generation study for various land use types in the Southern New Hampshire region. Transportation professionals commonly use the ITE Trip Generation Manual to establish trip rates by land use. These rates are national averages and may vary from area to area. In some cases, land use types are represented by trip rates based on only a few samples. In other cases, some land use types are not represented at all. The shortcomings of the ITE trip manual are evident in the wide range of rates it provides for land use types. The SNHPC’s report supplements the ITE trip data with local data that has been collected at similar sites.  As a result, the local trip generation study performed for the Southern New Hampshire area (and specifically for the SNHPC region) by the SNHPC provides a more complete and accurate picture of trip rates for the region.

The basic purpose of this study is to determine local trip generation rates for individual land use types in the Southern New Hampshire Region for which the data in the ITE trip generation report is lacking.

This project is ongoing. A report on the results so far can be downloaded by clicking the above heading.

Traffic Counting Program
As part of the Unified Planning Work Program, the Commission conducts traffic counts on regional roadways on an annual basis. A total of approximately 500 locations are counted each year, with about 30 to 35 percent of the counts done at the request of the New Hampshire Department of Transportation and the remainder is done as per the Commission’s own requirements. If you are a member community and would like to request a traffic count, please contact the Commission for your request to be included in that year’s count list. For a historical traffic count database, please check our Traffic Volume data section.

NH DOT Long Range Transportation Plan
The NH Long Range Transportation Plan 2010 - 2030 outlines the broad stragegic direction for the State and the Department of Transportation for a 20-year time horizon. The Plan articulates a future Vision for the State in which transportation will play an active role to 1) Preserve our Unique Character & Quality of Life; 2) Enhance Environmental Quality; and 3) Promote Sustainable Economic Development & Land Use. The Plan's recommendations are centered on achieving four Strategic Outcomes, including 1) Unify Transportation Planning and Investment with Broader State Goals and Actions; 2) Integrate Planning and Investment Decision-making across all Transportation Modes, Facilities and Services; 3) Increase Investment in the Areas of Transportation Infrastructure Preservation and maintenance, Travel Demand Management, and Travel Choices; and 4) Establish new, more effective Collaborative Partnerships to Better Leverage Resouces and to Acheive Long Term Goals.

Pettengill Road / Airport Access Road Transportation / Land Use Plan

The Pettengill Road/Airport Access Road Transportation/Land Use Plan was designed to 1) identify the transportation and land use related impacts of increased access to a study area in the vicinity of the Bedford-Manchester-Londonderry Airport Access Road (MAAR); and 2) determine if additional planned/proposed development resulting from the improvements will generate levels of traffic in excess of the anticipated capacity of selected principal elements of the study area roadway network.

State Bicycle Maps
The State Bicycle Map Steering Committee recently completed revisions to the State Bicycle Maps. SNHPC member communities provided input regarding trails, rail-trails, and pedestrian paths within their municipality as well as suggested safe biking routes to the SNHPC. This information was shared with the State Bicycle Map Steering Committee and incorporated into the updated maps.

General John Stark Scenic Byway
The General John Stark Scenic Byway is a 34-mile circular route connecting the towns of Goffstown, Dunbarton, Weare and New Boston. It is named in honor of New Hampshire's best known Revolutionary War hero, General John Stark. There are many historical points of interest along the route that refer back to the Stark family and the Revolutionary War era, along with other periods of history. The route was officially designated as a State Scenic Byway in 2008. The General Stark Scenic Byway is overseen by a council of representatives from each community, the SNHPC, the CNHRPC and the NHDOT. 
Robert Frost/Old Stage Coach Scenic Byway
The Robert Frost/Old Stage Coach Scenic Byway connects the towns of Atkinson, Hampstead, Chester, Auburn and Derry, and is designed to celebrate and interpret the historic Boston-Haverhill-Concord Stage Coach route that followed what is today NH Route 121.  It also highlights the New England landscape featured in much of Robert Frost's work, includeing the settings of some of his most famos poems.  The Byway focuses on the numerous historic sites, scenic views, outdoor recreational opportunities, and other attractions that the region has to offer - raising awareness among local residents and promoting visitation for economic development.  After 3+ years of work, the Corridor Management Plan was completed in October 2015.
Upper Lamprey Scenic Byway  
The Upper Lamprey Scenic Byway connects the towns of Candia, Deerfield, and Northwood, and contains an assortment of historical, cultural, and natural resouces, ranging from hilly vistas and lakeside panorama to classic New England downtown areas.  The northwestern part of the Lamprey River flows through the region, and recreational opportunities abound.  In addition to scenery and recreation, the traveler experiences myriad opportunities for antiquing along the Northwood stretch.  Historical architecture also exists throughout the 45-mile byway, and is a major draw for anyone interested in New Hampshire's proud days gone by.  This byway's Corridor Management Plan was completed in November 2016.

Coordinated Public Transit-Human Services Transportation Plan

Further information about commuter options available in the Southern New Hampshire Planning Region is also available at the SNHPC Kiosk.


Smart Choices Smart Trips: An Employer’s Guide to Implementing Effective Travel Demand Management Programs
For many New Hampshire residents, employers, and employees, traffic congestion has become a real concern. We complain about traffic and the delays it causes in our commute to work. Yet very few of us carpool, walk or bike to work, or utilize the services and resources available to seek other means of travel besides driving alone.  The Smart Choices and Smart Trips handbook is designed to address this issue by helping businesses within the Southern New Hampshire Planning Region design and offer effective transportation alternatives and commuter benefits aimed at making it easier and more economical for their employees to get to and from work. How to set up a carpool or vanpool, utilize existing NH Rideshare services, provide parking cash-out programs, utilize existing public and private transit services, set up alternative or staggered work hours, develop guaranteed ride home programs, and implement telecommuting options are all described and evaluated. Additionally, there are numerous implementation guides, references to decision making tools, and techniques designed to help estimate the potential costs and benefits of a transportation demand management program. 

There are also several excellent web pages, which can help you determine what types of commuter benefits and TDM options might be most appropriate for your workplace. For more information, visit US EPA Commuter Choice and the Association for Commuter Transportation:


  Complete Streets Toolkit  
SNHPC is preparing a Complete Streets toolkit in collaboration with the newly developed project Steering Committee.  The toolkit will include planning/policy guidance and design/engineering/land use needs and guidance.  While the primary audience will by Southern New Hampshire Planning Commission's cities and towns, the toolkit will also benefit other cities and towns across the state.

A Complete Street Steering Committee will be involved throughout the process and made up of state and local agencies, professionals, municipal staff, transportation coalitions, and other stakeholders involved in complete streets developments and implementation.

The toolkit shall be divided into two parts: a planning/policy guidance section and a design/engineering guidance section.  Aside from the toolkit, there will be an opportunity for three SNHPC communities to take part in a policy pilot program in which the stakeholder's committee will help each community develop a policy specific to the needs of that town.


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