Why do streets not get a coat of sealant like parking lots do?

Question

Why do I see entire parking lots get a coat of sealant, but never really see streets or highways get a large coat of sealant?

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For example: [https://youtu.be/Lmd1r0P0GWE?t=192](https://youtu.be/Lmd1r0P0GWE?t=192)

In: 709

Answer 1

There are a couple of reasons. Regular roads have better drainage, both by design and because cars go over it regularly at speed which tends to move the water off of them. A parking lot will potentially have a lot of standing water. Plus, regular roads are maintained by cities and they have a schedule for a grind up and re-asphalt, a parking lot will potentially not have the same level of attention and a higher bar to have the lot chewed up and re-asphalted.