augusti 29, 2006
single point
The first evening in Rochester this past weekend, we got of Route 52 to head to our motel, and drove through a single-point interchange.
"Hey, I've seen diagrams of these, but this is my first time driving through one," the traffic engineer in me commented as Currie navigated the less-than-familar left hand turn that feels like you're gonna hit the on-coming left turning traffic.
"Been through what?" Currie asked.
"A single-point interchange. Like the one we just drove through. Those highway exit ramps didn't lead to an intersection on either end of the bridge over the highway, but to one large intersection centered on the bridge over the highway.
Saturday morning, before we had our pannekoeken breakfast, I went out for a run, and finished up at the intersection, getting a good look how traffic operated in it.
Here's 1000 more words on the subject:
