Post Number: 4
|Posted on Thursday, December 29, 2011 - 10:44 am: |
1. Are there any plans in place to extend Panther Creek Parkway from the DNT to Preston Rd? If so, can you provide a time frame?
2. Can you explain why certain speed limits are set in one area vs. another area? i.e. Eldorado East of the DNT has a 45mph speed limit. West on Eldorado has a 50mph speed limit. Another example, is Legacy Dr. from Main to Lebanon is 45mph. Are there any plans to increase the speed limits on these roads?
Thanks for your time, have a Happy New Year!
(Message edited by admin on January 03, 2012)
Joel Fitts, Senior Traffic Engineer
Post Number: 126
|Posted on Thursday, January 05, 2012 - 11:49 pm: |
1. There are currently no plans to extend Panther Creek Parkway between the DNT and Preston Road. The construction of this stretch of road will be driven by development whenever it occurs in that area in the future.
2. The speed limits on major roadways are not set according to any pre-determined plan. Instead, speed limits are determined based on engineering studies (a standardized process that is used nationwide). We conduct speed zone studies on every arterial roadway in the City at least once every three years in order to see if the posted speed limits need to be adjusted. Each roadway is broken into logical segments and studied individually. These studies will sometimes result in different speed limits on different segments of the same roadway if those semgents have different characteristics (such as hills, curves, density of driveways, etc.).
Generally, when an arterial roadway is first widened to 4 lanes or more, speeds go up. But as traffic volumes increase on that roadway, speeds typically go back down. Therefore, as traffic levels will continue to grow over time on Eldorado and on Legacy, it is very unlikely that their speed limits will be increased in the future.
Senior Traffic Engineer