Just a wacky perspective on mass transit for a moment: What if we passed a bond for $1BN, spent $400MM on roads, and $600MM on Smart cars?
At a low-end invoice price of $11,616 [1], $600MM buys 51,652 SmartCars. There are 276,611 households in Austin [2], so we can't give one to each HH. Probably a expanded vehicle-sharing program would be best. Using car2go as a model, which has 300 cars in use [3], this could have a pretty expansive service map.
Austin has 7,498 lane-miles of road under city ownership [4]. Let's add 50% for state/federal to be safe: 11,247. That's close to 60MM ft of lanes.
A Smart FourTwo is 95 inches long [4]. A Chevy Traverse is 205 inches long [5]. I'm going to be a little sloppy and assume a Traverse represents an average car, and that two FourTwos equal one average car in length. I'll make up for it by assuming that each FourTwo only replaces one car per day, when really it might replace many.
If this system got people to leave their larger cars at home, this <could> represent a decrease in peak demand of 51562 * 95 in * 1 ft / 12 in = 408199 ft of lanes, or 0.6% reduction in lane-ft needed daily.
Unfortunately that doesn't sound worth the property tax increase. Was my math/logic solid? Is there a way to describe Prop 1 (which I oppose) from a similar perspective? Are there any sort of cumulative AADT numbers for the Austin commuting network that could be better leveraged?
[1]
USnews 2013 Smart Fortwo Review
[2]
Austin Demographics
[3]
car2go gets Austin going
[4]
Portland street fee: Austin, where roads rule, is the only other Portland-sized city doing it
[5]
Smart FourTwo
[6]
Chevrolet Traverse