> The older ones yes, but few are still on the road in public transit service
If only that were true in my major US city. The public buses are probably the most filthy vehicles on the road. Every fourth one lets out a cloud of acrid black smoke every time it accelerates. I have to assume they are officially or informally exempt from emissions testing.
I assume those are older busses in fleets that don't have the money to buy new cleaner busses. This is what I observe out on Long Island. You see maybe one or two people on a bus ant any given time because LI is dominated by the car. The busses are a total loss so there's no money to upgrade.
If only that were true in my major US city. The public buses are probably the most filthy vehicles on the road. Every fourth one lets out a cloud of acrid black smoke every time it accelerates. I have to assume they are officially or informally exempt from emissions testing.