Forces of Change and the Future of Our Region SPC is the regional planning agency serving the 10-county Southwestern Pennsylvania region. We are currently in the development of the new Transportation and Development Plan for the region. The planning process considers major Forces of Change underway in the world now and how we can adapt to the change and take full advantage of the opportunities it creates. "Forces of Change" are high level external forces that could have significant regional impact now and in the future. Forces of Change with significant potential effects on transportation and development have been identified in five broad categories: Demographics, Technology, Economy, Environment, and Funding.