I noticed recently that there are four consecutive onramps on SB US 101 in Los Angeles between the offramps for Exit 27 (Ventura Blvd/Topanga Cyn Blvd) and Exit 26 (DeSoto Ave).
How unusual is this? Are there other freeways with more consecutive on- or off-ramps?
The ramps in this case are from Ventura Blvd, SB Topanga Cyn, NB Topanga Cyn, and Canoga Ave (a half-diamond NB-off/SB-on). The NB freeway has an offramp corresponding to each, but an onramp between the third and fourth.
I-90/94 downtown Chicago: https://maps.app.goo.gl/UzracEgUQTBAUovu7
I asked the same question (https://www.aaroads.com/forum/index.php?topic=30024.0) a few years ago, and the discussion was highlighted and ultimately settled by the discovery that I-895 near Baltimore Harbor has 7 consecutive exits without an entrance.
15/501 in NC exit 108 A-B-C-D
Wisconsin I-794 in Milwaukee has WB off ramps numbered 1F,1E,1C,1B and 1A
Quote from: webny99 on August 15, 2024, 10:11:31 PMI asked the same question (https://www.aaroads.com/forum/index.php?topic=30024.0) a few years ago, and the discussion was highlighted and ultimately settled by the discovery that I-895 near Baltimore Harbor has 7 consecutive exits without an entrance.
The Baltimore Harbor Thruway was built purposely to have all exits outbound from the tunnel and all entrance ramps inbound to the tunnel. That was to prevent local usage and make it so only through and cross harbor traffic can only use it.
I-295 North in NJ has 6:
Interchange 23:
From US 130 South
From US 130 North
Interchange 24:
From NJ 45 North
From CR 551
Interchange 25;
From NJ 47 South
From NJ 47 North