From the category archives:

Transit

Public transit is good for the economy. It reduces congestion and wear on roads, and also helps lower families’ cost of living, which can offset the higher price of housing in desirable locations. Although building the planned new LRT lines will be expensive, they will move people more efficiently than the similarly expensive freeways that would otherwise be needed.
 
Convenient, safe, affordable public transit improves efficiency by reducing congestion and is also environmentally responsible.

Read some of Don's previous posts on this topic: