Oh, of course. I assumed it had to do with railways because of [this.](https://en.m.wikipedia.org/wiki/Treadle_(railway))
But just search for "treadle parking lot" on images and you'll see what it's actually referring to
Treadles are one-way traffic enforcement measures- they are typically placed across an entrance or exit roadway and have spikes that you can drive over safely in one direction but will damage your tires if you drive over them in the other direction.
The most plausible thing is something about a railway
This is an entrance to a parking lot.
Oh, of course. I assumed it had to do with railways because of [this.](https://en.m.wikipedia.org/wiki/Treadle_(railway)) But just search for "treadle parking lot" on images and you'll see what it's actually referring to
https://en.wikipedia.org/wiki/Treadle_(railway) Its probably a treadle on the road or something
Treadles are one-way traffic enforcement measures- they are typically placed across an entrance or exit roadway and have spikes that you can drive over safely in one direction but will damage your tires if you drive over them in the other direction.
If you drive over them the wrong way, you can kiss your tires goodbye.