With millions of Americans hitting the streets to get to work, school and play, many cities are facing increasingly heavy traffic, and many highways are getting clogged with cars. Meanwhile the infrastructure--pavement, bridges and new and expanded roadway--suffer from lack of funding. Attempts to fund high-speed rail have met with resistance from some states while others--notably California--have embraced the concept. Amtrak continues to limp along from appropriation to appropriation. Few new airports are being built with most federal funding going to maintenance and improved technology.