Traffic light at Preston and Eldorado Log Out | Topics | Search
Moderators | Register | Edit Profile

City of Frisco Question and Answer Board » Frisco Q & A » Traffic light at Preston and Eldorado « Previous Next »

  Thread Last Poster Posts Pages Last Post
  Start New Thread        

Author Message
 

Damon Hammis
New member
Username: Dhammis

Post Number: 1
Registered: 09-2006
Posted on Wednesday, September 06, 2006 - 11:48 am:   

Can an analysis be done of the timing for the light at Preston and Eldorado? With the new neighborhoods being built near there and more traffic heading North to Prosper that intersection is becoming more and more difficult to pass through. I recently spent over 10 minutes waiting to turn left (South) onto Preston from Eldorado. Also, are there plans to make a right turn lane from Preston heading North onto Eldorado heading East?
 

Curt Balogh, Spec. Asst. to the City Mgr
Board Administrator
Username: Admin

Post Number: 302
Registered: 02-2003
Posted on Friday, September 08, 2006 - 08:42 am:   

Damon,

I plan to spend some time updating the signal at Preston Road and Eldorado next week. This week we have been busy turning on the new traffic signal at Custer Road / Main Street and the signal changes required on Dallas Parkway to accommodate the toll-way construction at Lebanon Road.

The City has recently purchased new traffic signal equipment for the signals on Preston Road. I plan to update the equipment at Preston and Eldorado next week and vary the sequence to improve the efficiency of the signal. We have been applying this successfully on Eldorado Parkway at Teel for the last several weeks. Hopefully, we can reduce your delay pulling out onto Preston Road in the morning until TxDOT widens Preston Road to improve the capacity of the intersection.

Sincerely,
John R. Black, P.E.
Sr. Traffic Engineer
City of Frisco
Engineering Services
6101 Frisco Square Blvd
Frisco, Texas 75034
 

Brian Heathman
New member
Username: Brianh111

Post Number: 1
Registered: 01-2006
Posted on Sunday, September 17, 2006 - 01:03 pm:   

"until TxDOT widens Preston Road to improve the capacity of the intersection"

Is there a link you can point me to on this (or another Frisco) website that details the timeframe for when this will be started and completed?

Thank you
 

John Black, Senior Traffic Engineer
Moderator
Username: John_black

Post Number: 1
Registered: 07-2006
Posted on Monday, September 18, 2006 - 09:11 am:   

The link to the Dallas District (TxDOT) is:
http://www.txdot.state.tx.us/DAL/

The projects shown on that page are those under construction. Preston Road (SH 289) is not listed because it is under design.

TxDOT recently revised the schedule for starting the Preston Road project. Their current estimate is to begin construction in 2008 and finish in 2010.

Keep in mind that right-of-way aquisitions and utility adjustments can delay state highway projects like this.
 

Bryan Fritchie
New member
Username: Hogcall

Post Number: 12
Registered: 06-2006
Posted on Monday, November 27, 2006 - 02:21 pm:   

A few months ago, I assume after the light was tweaked, going south bound on Preston became much less congested in the morning. However, in the last few weeks it has started backing up again. Was the light changed back, or has traffic picked up since the light was changed? Can this intersection be evaluated again?
 

Curt Balogh, Spec. Asst. to the City Mgr
Board Administrator
Username: Admin

Post Number: 339
Registered: 02-2003
Posted on Tuesday, November 28, 2006 - 01:13 pm:   

We have made numerous changes to the timing of the signal at Preston Road and Eldorado Parkway over the last several months. The SB traffic on Preston Road (SH289) increased significantly when we were forced to convert Eldorado Parkway and Custer Road to a 4-way stop because of the number of crashes at that intersection. We expect some of the SB traffic to shift from Preston Road back to Custer Road later this month when the traffic signal is complete at Eldorado and Custer.

The additional traffic load at Preston and Eldorado is difficult to manage with signal adjustments because the roadway is over capacity. We adjusted the timing to reduce the wait time for drivers on Eldorado Parkway and the SB backup on Preston Road increased to almost US380. We then adjusted the timing to reduce the SB backup to Panther Creek and the drivers on Eldorado are frustrated having to wait 10 minutes to clear the signal. Drivers also change their route on a daily basis from SB Preston to WB Eldorado which makes it difficult to anticipate the demand for green time at the signal.

When the signal at Eldorado and Custer is turned on, some of the US380 traffic will shift from Preston Road back to Custer Road; however, the ultimate solution will come when TxDOT widens Preston (SH289) to 6 lanes next year. The main lanes for Dallas Parkway will also open next year providing an alternative for drivers on US380. Until then, we will try and adjust the signal operation at Preston / Eldorado to equalize the delay, but keep in mind that if we increase green time for SB Preston Road, we in essence take green time away from Eldorado Parkway. There are only 60 seconds in a minute. If we give SB Preston 30 seconds and Eldorado Parkway 30 seconds, there is no way to add time for one approach without taking it away from the other.

John Black, P.E.
Sr. Traffic Engineer
 

Brian C
New member
Username: Brianc

Post Number: 86
Registered: 06-2003
Posted on Wednesday, November 29, 2006 - 09:27 am:   

Can the light timing at Preston/Warren be monitored? In the morning, E/W traffic waits for a long time after all N/S traffic is clear.

Also, Preston/Warren Preston/Gaylord after 9pm usually cycles turn lanes without cars in those lanes.
 

Mike B.
New member
Username: Ctrlbrk

Post Number: 2
Registered: 11-2005
Posted on Wednesday, November 29, 2006 - 07:31 pm:   

What about "smart" lights, ones that sense traffic and adjust. Too often I am waiting a long time at the red light when the other direction traffic is barely trickering thru.

I understand you are saying its over capacity, but a smarter light that can adjust as needed would seem appropriate.
 

John Black, Senior Traffic Engineer
Moderator
Username: John_black

Post Number: 7
Registered: 07-2006
Posted on Friday, December 01, 2006 - 04:30 pm:   

Preston/Warren, Preston/Gaylord (AM):

A signal cycle is the time required to service all approaches at the traffic signal. In the AM peak, there are so many southbound vehicles on Dallas Parkway that we are forced to run a 170 second cycle. The time allocated to the cross street traffic at Gaylord and Warren Parkway is held as short as possible to reduce the backup of traffic from the toll-booth extending through the signal at Warren Parkway. We are trying our best to make sure that the SB traffic does not back into the Warren intersection and cause gridlock at this signal.

After 9am, the cycle drops from 170" to 75". It might be possible to program the cycle change sooner to reduce the delay to the cross street (we can look into that). However, I wouldn't expect the cycle change to be made prior to 8:45am.

Preston/Eldorado (AM)

We have been adjusting this signal at least once per week for the last several months to address complaints from citizens concerning all approach direction. Yes, the intersection is way over capacity. TxDOT has completed the design to widen SH289 (Preston) to 6 lanes and they are working as fast as possible to purchase right-of-way and move utilities to widen the highway. In addition, the City of Frisco is finalizing a design to widen Eldorado Parkway west of SH289 and have this project under construction in May or June of next year.

"Smart" lights work great when there is enough capacity to accomodate the demand at the traffic signal. Currently the signal at Preston and Eldorado Parkway only provides a single lane for each traffic movement and demand exceeds supply for all approach traffic. So, even the best adjustment can only equalize the delay for all approaches.
 

Mike B.
New member
Username: Ctrlbrk

Post Number: 3
Registered: 11-2005
Posted on Friday, December 01, 2006 - 08:22 pm:   

John,

Thank you for the detailed response. One quick follow-up regarding the design to widen Preston. Originally the design did not call for dedicated right hand turn lanes at the Eldorado intersection (all directions). Has this been reconsidered now given the exponential growth that intersection has received?
 

John Black, Senior Traffic Engineer
Moderator
Username: John_black

Post Number: 8
Registered: 07-2006
Posted on Tuesday, December 05, 2006 - 05:08 pm:   

Preston / Eldorado Intersection:

Once the TxDOT widening on SH289 (Preston Road) is complete and the City project on Eldorado Parkway is complete, we will have a dedicated right-turn lane on all four approaches.

We will also have dual left-turn lanes on all approaches except the WB approach (the median on Eldorado is wide enough to add a second left-turn lane WB on Eldorado at a future date).

These widening projects will provide 6 through lanes on Preston Road and 4 through lanes on Eldorado Parkway through the intersection.

John Black
Sr. Traffic Engineer
 

Jeff Pergola
New member
Username: Jeff_pergola

Post Number: 16
Registered: 07-2003
Posted on Thursday, December 07, 2006 - 10:00 am:   

John -
Out of curiosity, why was this project (Preston/Eldorado) not widened when the construction on the bridge just north of this intersection created. One would have thought this bridge construction would have been the starting point for the widening of Preston from Main through US380. As it is now the bridge construction has been completed for the majority of the year, and the topic of widening Preston in this area is just now being addressed. As you said, this intersection is "way over capacity"... shouldn't this construction have been done prior to getting to this point? Seems like the "infrastructure planning process" needs a bit of work.
 

Curt Balogh, Spec. Asst. to the City Mgr
Board Administrator
Username: Admin

Post Number: 343
Registered: 02-2003
Posted on Wednesday, December 13, 2006 - 08:58 am:   

Jeff,

Plans to widen this section of Preston have been in works for several years. Roadways on the state highway system being widened with federal/state dollars must go through a much more rigorous design process. From when design first begins, it will typically take 5 to 7 years before construction starts.

Design of this section of Preston began in early 2001. The early schematic design work was presented at a Public Meeting on April 2, 2003. Comments received at that meeting were used to update the schematic. The schematic design was approved on January 19, 2004. Once it was approved, it was submitted for environmental clearance. The environmental clearance was received June 17, 2005. Once that clearance was received, the preliminary and final design work could start. A Public Hearing was held on February 2, 2005.

The final plans were essentially complete this fall. Right-of-way acquisition has been ongoing in the corridor for most of 2006. This task is not yet complete. The next step will be to get the utilities relocated. Once the relocation is complete, TxDOT will let the job for construction. TxDOT expects to let the job next fall (2007).

The bridge construction was not related to the Preston widening. Federal bridge money was approved in the early 1990's for these bridges. The new bridges were placed so they could be used in the ultimate configuration of Preston.

If you have further questions regarding the process to widen Preston Road, you are welcome to contact the TxDOT Area Office in McKinney at 972-542-2345.

Thanks
Brian Moen
Transportation Manager
 

Scott
New member
Username: Scott475

Post Number: 5
Registered: 10-2004
Posted on Monday, December 11, 2006 - 01:38 pm:   

What about right turn lanes from Preston to Eldorado now? Nothing permanent, but something to help ease the traffic nightmares when traveling north/south on Preston.

Also, what about dedicated turn lanes at Eldorado and Dallas Pkwy? I've sat through an entire cycle at that light waiting for one car to take an unprotected left turn.
 

Curt Balogh, Spec. Asst. to the City Mgr
Board Administrator
Username: Admin

Post Number: 345
Registered: 02-2003
Posted on Wednesday, December 13, 2006 - 09:03 am:   

Scott,

Adding those turn lanes now will delay the start of the overall Preston reconstruction. Utilities would need to be relocated now and then again for the widening job because the right-of-way at that corner has not been acquired yet to allow the utilities to move to their ultimate location. The right-turn lanes would also be removed during the first phases of construction as traffic is shifted to build the new lanes. The Preston widening was originally scheduled to let this month, but delays in the right-of-way acquisition have moved the start date to next fall.

At Dallas Parkway and Eldorado, traffic on southbound Dallas Parkway will be switching to the new southbound service road by the spring of 2007. We are still working with NTTA on finalizing the schedule of that traffic switch. That will significantly reduce the northbound/southbound congestion on Dallas Parkway at that location. As John Black mentioned earlier in this thread, Eldorado between Preston and Dallas Parkway is under design and is scheduled to start construction in summer 2007. This will widen Eldorado from Dallas Parkway to just west of Frisco Street to six lanes. From that point east to Preston, it will be four lanes wide.

On the west side of Dallas Parkway, TxDOT will be starting construction on widening Eldorado (FM 2934) to six lanes in the summer 2007. They are currently scheduled to let the job in April 2007.

Thanks
Brian Moen
Transportation Manager

Add Your Message Here
Post:
Username: Posting Information:
This is a private posting area. Only registered users and moderators may post messages here.
Password:
Options: Enable HTML code in message
Automatically activate URLs in message
Action: