Guest
I would like to know the difference in traffic flow capacity before and after a Single Point Urban Interchange (SPUI) is installed. How did this interchange improve the traffic flow?
Thanks Steve
Thanks Steve
Tek-Tips is the largest IT community on the Internet today!
Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!
-
Congratulations cowski on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!
If one assumes that the SPUI is replacing the traditional "diamond" style of interchange then the difference in capacity would be slight .... however the area required for the SPUI (ie. the "footprint"
would be smaller for the SPUI than for the diamond. However this smaller footprint comes at a price. In order to maintain sight distance etc. the SPUI requires longer deeper beams and more beam lines than the "diamond" did. Such beams are not cheap. Thus the SPUI lends itself to those applications where rights-of-way are restricted and you need to "shoe-horn" a new interchange into an existing urbanized area.
would be smaller for the SPUI than for the diamond. However this smaller footprint comes at a price. In order to maintain sight distance etc. the SPUI requires longer deeper beams and more beam lines than the "diamond" did. Such beams are not cheap. Thus the SPUI lends itself to those applications where rights-of-way are restricted and you need to "shoe-horn" a new interchange into an existing urbanized area.- Status
Similar threads
- Locked
- Question
- Locked
- Question
- Locked
- Question
- Locked
- Question