I have a dataset that describes a few million incidents along Texas roadways. The vast majority of incidents only list a highway name and a milepost. For example, milepost 120 on I-20 or milepost 263 on US 60.
How would I convert these milepost/highways to latitude and longitude?
This is for a low-budget academic project, so trying to stick with free tools as much as possible.
My Google searching hasn't turned up much fruit, although some indications are that TxDOT may have data I could request through the Texas Public Information Act, but not sure yet.