Transit Oriented Development Advocate (Popularity: ): Case studies of light rail station area planning and transit oriented development. Carfree Cities (Popularity: ): A collection of examples and solutions for achieving car-free cities. National Transit Institute (Popularity: ): Training, education, and clearinghouse services in support of public transportation in the United States. EPA - Office of Transportation and Air Quality (Popularity: ): Protects public health and the environment by controlling air pollution and encouraging travel choices that minimize emissions. Surface Transportation Policy Project (Popularity: ): U.S. activist website includes current news and topical analyses about a variety of transportation planning topics. Bike Plan Source (Popularity: ): Bicycle planning, advocacy, and program development. Features a planning guide, resource list, and news. Transport Model for Scotland (Popularity: ): A multi-modal model covering strategic inter-urban travel within Scotland. Association of Metropolitan Planning Organizations (Popularity: ): A nonprofit organization serving metropolitan planning organizations. Census Transportation Planning Package 2000 (Popularity: ): Special tabulations from the 2000 U.S. Census designed for transportation planners. Transportation Research Board (Popularity: ): Promotes innovation and progress in transportation by stimulating and conducting research, facilitating the dissemination of information, and encouraging the implementation of research results. Resurfacing Safety Resource Allocation Program (Popularity: ): Free Access and Excel templates allowing highway agencies to optimize traffic safety improvements in conjunction with resurfacing projects.