In the opinion of myself, and perhaps others, a "proper" BRT system is few and far between. Even the system their describing in the article is almost exactly what they're creating in real live between Denver and Boulder, but many compromises have been made, and it's not going to work out as originally planned. Funnily, part the funding was through a program called, "Fast Tracks", which - you guessed it, was money allocated for a lightrail system that... wasn't created.

The likelihood of getting a proper BRT system when a city sets out to build one seems a lot lower than the probability of getting working light rail. Granted, both are low.

In NYC, we have "dedicated lanes" for some of our buses. But there are no spikes in the ground and when someone parks in one, the bus doesn't actually smash the car out of the way. So we're back to the mercy of traffic.

But proper BRT is very rare because it costs almost as much to build as light rail. If you are going to put that much money into it, you might as well spend a bit more and get the other advantages of light rail, e.g. lower operating costs, higher passenger capacity, lower emissions, less noise pollution, smoother ride, etc.

I don't see how you can avoid delays if you still have to follow traffic.