David Dallman wrote:
> I hope I have got this right, Wayne will certainly correct me if not.
> Although tracks with and without a curb (kerb in England) are both
> allowed, the distance away from the inside at which the 400 metre distance
> is measured is different in the two cases. This is precisely because it is
> easier to run right on the inside line if there is no curb than if there
> is one. Therefore it's not just a question of saving up to buy a curb and
> laying it down on the inside line. In fact it would have to be laid down
> slightly further in, by the amount specified in the IAAF rules.
> I imagine the rules consider a track marked with cones to be a track
> without a curb. However, while putting down cones might stop runners
> running even inside the inner line, putting them along the inside line
> would actually penalise the runners somewhat by making them run too far.
> How much is difficult to judge, it would depend on how close the cones
> were to each other. If they were touching, it would be like a real curb,
> if they were only every 50 metres it would be like having no curb.
>
> David Dallman
>
The measure line for tracks with a curb (kerb) is located 30 cm. out from the curb
(kerb). For tracks without a curb (kerb) the measure line is 20 cm. out from the
outer edge of the painted line in lane one. David is quite correct in his
observation that you can't simply put down a curb (kerb) on a track without one.
--
Wayne T. Armbrust, Ph.D.
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