speedway

Short definition from Wiktionary

Noun

1. 1
   A form of motorcycle racing on flat (without camber) oval dirt tracks using motorcycles with neither brakes nor gears.
2. 2
   A form of bicycle racing on flat (non-banked) oval dirt tracks.
3. 3
   A racetrack venue designated especially for the sport of auto racing.
4. 4
   A racetrack venue designated especially for the sport of auto racing: A positive-camber banked oval racing circuit, designed for high speed cornering, racing anywhere on the length of the track.
5. 5
   A positive-camber banked oval racing circuit, designed for high speed cornering, racing anywhere on the length of the track: A size of paved banked oval racetrack, smaller than superspeedways, but larger than a mile.
6. 6
   A road for high speed traffic; an expressway.

Proper noun

1. 1
   An enclave of Indianapolis, Wayne Township, Marion County, Indiana, United States.