Infrastructure stimulus plan--my own

My thoughts on an infrastructure stimulus bill are as follows:
Items should be able to provide value to the American economy.
1) Add a third lane to all interstates and a fourth lane to urban loops. Upgrade all roads and bridges to satisfactory conditions
a. Traffic will increase. Semi traffic double or triple in next decade
b. Open roads means smoother traffic, less congestion, and better energy results
c. Double gas tax to provide funds to maintain and improve roads
2) Use federal grants to double track all major rail lines in the country and to build overpasses/underpasses along all highways.
a. Expedite rail traffic and hence save energy
b. Immediately save several thousands lives a year ordinarily killed by rail auto incidents
c. Provide path for direct, high speed interurban passenger rail traffic
3) Double or triple port capacity. Provide priority for exports.
4) Modernize FAA and air routes to provide point to point travel
a. Save energy and time
5) Immediately open up all coastline and government acreage to oil and gas exploration, fast-track and prohibit environmental challenges. Open up ANWR and Oil shale production.
6) Fast track dozens of new nuclear energy plants.
7) Upgrade and build new transcontinental transmission systems to provide for easy flow of power to where it is needed.