Looking at Measure R

Expected to generate $30 billion to $40 billion over 30 years for transportation projects in the nation's most traffic-clogged city, Measure R is aimed at relieving Los Angeles County by building a subway, expanding rail and bus service, and widening roads.Sue Doyle in the Daily News.

Though it comes at a jittery economic time - with subprime mortgages unraveling the banking industry and Congress bailing out those financial institutions - the half-percent sales-tax measure could find favor with voters sick and tired of soaring gasoline prices and seeking better mass transit.

The measure needs approval from two-thirds of voters and would increase the county sales tax rate to 8.75percent.