Three bus rapid transit lines are being constructed as a way to make the metro more efficient and attractive.

A rapid transit line is currently in planning stages.

The rapid transit line runs on an elevated section.

The bus rapid transit line could be functioning as early as 2017.

E Train is a name for two rapid transit lines:

It is the busiest rapid transit line in Turkey, serving 240,000 passengers daily.

The total cost of the project (including the rapid transit line) was now $237 million.

Additional codes are used on some rapid transit lines.

Outside urban centers, rapid transit lines may run on grade separated ground level tracks.

The three rapid transit lines are incompatible; trains of one line would have to be modified to run on another.