1. New York Metropolitan Transportation Council, 199 Water Street, 22nd Floor, New York, NY 10038.
2. Citilabs, P.O. Box 324, Plainsboro, NJ 08536.
3. RAND Corporation, 1200 South Hayes Street, Arlington, VA 22202.
4. NuStats, 206 Wild Basin Road, A-300, Austin, TX 78746.
5. GeoStats, 530 Means Street, NW, Suite 310, Atlanta, GA 30318.