wikicommonsToday, the MTA issued an order rescinding the use of flashing blue lights on all Select Bus Service or SBS buses. These lights are used to distinguish the select buses from local buses. Flashing blue lights are particularly useful at a crowded bus stops or when you’re squinting up Second Avenue hopelessly searching for a gigantic foul-smelling blue angel to come to a cacophonous halt, yawn its doors open, and accept your tired soul.
From: blogs.villagevoice.com – Read more