Try this wrote:
http://www.eracewalk.com/CalcTrac.htm
That's a handy link. Thanks.
http://www.eracewalk.com/CalcTrac.htmSumming up, international tracks have lanes that are 1.22m to 1.25m wide (48 inches), but most high school and college tracks have lane widths of 42 inches.
Good ways to measure and check the distance of lanes are by measuring either (1) the distance from start to stagger in each lane, or (2) the width of each lane.
You can check the track by using a tape, and the calculator on the link as posted above. The width of 4 lanes, at 42" each, should be 14', which is easy to measure with a 16' tape.