An issue has come up a few times now which has really bugged me. Whenever a road has on-street parking, it appears that cars parked on the street are within the departure sight distance triangles (per AASHTO). For example, on a project that I'm working on with a 40 mph design speed, if you plot the departure sight distance triangles at a typical intersection, you would need to restrict parking for about 300' from the intersection which would be most of the block. Currently, cars are allowed to park up to about 20' from the intersection. I've research this a lot and the only thing I've found is to allow a certain distance from the crosswalk (20'-100', depending on the design speed), but this if really for the pedestrians to see approaching cars before they cross and not for the vehicles on the minor street. Is this something that is just an acceptable risk since on-street parking can be very desirable or is there something I'm missing? Any thoughts would be appreciated.
Red Flag Submitted
Thank you for helping keep Eng-Tips Forums free from inappropriate posts. The Eng-Tips staff will check this out and take appropriate action.
Reply To This Thread
Posting in the Eng-Tips forums is a member-only feature.
Material selection can be a guessing game, but it doesn’t have to be. If you’re an engineer looking to quantitatively analyze a material to determine if its properties fit your application, then you’ll need to be ready with a wide range of facts. Download Now
Teach pendants are a critical part of the factory environment as they act as the human/machine interface for industrial robots. But since teach pendants are handheld, they are under a greater risk of damage due to falls. Download Now
Product development in most companies requires a sequential iterative process to come up with the right product. It can be time-consuming and time is a resource that is in the shortest supply. Download Now