What is b45 bus?

As an AI language model, I do not have access to real-time data about public transportation, but here's some general information about the B45 bus route:

The B45 is a bus route operated by the New York City Transit Authority in Brooklyn, New York. The route mostly travels along Fulton Street, from Williamsburg to Crown Heights. Some of the major stops along the route include the Marcy Ave station (where you can transfer to the J and M subway lines), the Brooklyn Hospital Center, and the Brooklyn Museum.

The B45 bus operates 7 days a week, with frequent service during peak hours. The estimated travel time for the full route is about 55-60 minutes. The fare for the B45, as of 2021, is $2.75 per ride with a MetroCard or contactless payment.

Passengers can plan their trip and track the real-time location of the bus using the MTA Bus Time app or website. Keep in mind that bus schedules and routes may be subject to change due to traffic, construction, or other factors.