What is a lane?

1. A roadway designated for motor-vehicle traffic only.
2. Correct answer: Part of a road’s width, designed to accommodate one line of vehicles, not including two-wheelers.
3. Any marking of two parallel lines on the roadway.
4. A passage in a private road in which vehicle traffic is prohibited.

WhyA lane is any lengthwise strip of the roadway wide enough for one line of vehicles. Two-wheelers are not counted for this definition.