“The article notes that BRT (like TransMilenio) can beinstalled 'at a fraction of the cost of building a subway'--but there’s a more comparable surface rail alternative: electric light rail transit (LRT).
“TransMilenio’s investment for its initial 24-mile system in2000 was $350 million; adjusting for inflation and national cost differentials, the equivalent cost of a system in a similar U.S. corridor would be about $1.8 billion--about $73 million per mile, roughly equivalent to Phoenix’s new LRT.
“TransMilenio’s CERs were awarded mainly on the basis of converting from older buses to new, lower-emission buses. Over 89% of BRTpassengers would otherwise use 'dirty' buses; only 4.3% would use automobiles.
“In similar surface alignments, wouldn’t converting from dirty buses to clean electric trains, with their capacity, cost, and environmental advantages, make even more sense--and perhaps attract more riders from cars?”