From west to east, the streets are:
*Taylor, US 287 south
*Fillmore, US 87 north
*Pierce, US 87 south
*Buchanan, US 287 north
I hadn't thought about that until now, but the Amarillo situation is not typical in this sense: whichever route one happens to be driving, the opposing direction of that same route is
not the next block to the left. Instead, for drivers on US 287, opposing traffic is
three blocks to the left. And for drivers on US 87, opposing traffic is one block to the
right. I came here wondering if anyone had discussed the reason for that before, and the observation below provides a partial answer:
Note that while northbound US 287 is constrained to using only Buchanan, traffic on all other routes can use either street.
If NB 287 traffic must use Buchanan, then why wasn't SB 287 traffic put on the adjacent block to the left (Pierce)? I believe the reason is that SB 287 needs to make a right-hand exit to continue on EB I-40, which is an easier movement for drivers on Taylor. Photos, maps, and additional thoughts on
this page.