Bus rapid transit or BRT has been around at least since the 1970s when the first ‘real’ BRT systems went into operation in Curitiba, Brazil. Here’s an article presenting the current state of deployment of these systems in the US:

Duncan, I. (July 23, 2021) “Cities are turning to supercharged bus routes to more quickly and cheaply expand transit services,” The Washington Post, https://www.washingtonpost.com/transportation/2021/07/23/bus-routes-public-transit-brt/

“There are indications that BRT lines can promote some of the density long associated with rail routes. A new analysis of job and residential growth by researchers at the University of Arizona examined areas around BRT stations in 11 cities between 2013 and 2019. In each case, they found areas close to the stations accounted for a significant share of regional growth.”

The Philippines should have had its first BRT line more than a decade ago if the government had been decisive about it. The first opportunity was under the administration of Macapagal-Arroyo when it was first conceptualized for Cebu City under a UNDP project and picked up by the WB for implementation.* The next opportunity came under the Aquino administration when the Cebu BRT could have been one of those low-hanging fruits for public mass transportation. Now, the same project is nowhere near completion as the Duterte administration has less than a year before it bows out. Meanwhile, there are proposed BRT’s in Metro Manila and Davao that have yet to see the proverbial light of day. The EDSA carousel is supposed to morph into a BRT but has not become so and requires more tweaking for it to be one.

*[Note: The BRT that was supposedly implemented by the MMDA under its then Chair Bayani Fernando was not a BRT or even a BRT light. It is not even at the scale of the current EDSA carousel.]