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Lawrence Silverman
New member
Username: Lsilverman

Post Number: 1
Registered: 07-2010
Posted on Tuesday, July 13, 2010 - 03:39 pm:   

I would like to know how we can make chnges at two places....1st one is 121 and Legacy-the service road of 121 going West and Legacy going North-there is no seperate right turn lane there and it appears that a turn lane would help immensely with traffic flow. Additionally there is no right turn lane at Legacy heading South and turning onto 121 Service road heading West. This backs up traffic significantly. Have these changes been considered? How do we get them to be considered? Thanks, Larry Silverman

Joel Fitts, Senior Traffic Engineer
Username: Joel_fitts

Post Number: 86
Registered: 03-2008
Posted on Wednesday, July 21, 2010 - 08:18 am:   


Yes, right-turn lanes are planned at all major intersections in Frisco, but their implementation is often complicated by right-of-way and land development issues.

Once the empty land in the northeast corner of Legacy and SH 121 develops, a right-turn lane will be added onto the westbound frontage road.

A right-turn lane on southbound Legacy at SH 121 was begun a couple years ago and then halted because of construction issues that arose when SH 121 was being widened by TxDOT. That project was recently redesigned and the construction of a double-right-turn lane on southbound Legacy Drive is slated to begin in the Fall.

Joel Fitts
Senior Traffic Engineer

Christopher Reemts
New member
Username: Tanker64

Post Number: 17
Registered: 01-2009
Posted on Wednesday, July 21, 2010 - 10:27 pm:   

So - this means that taking 423 to/from 121 is going to be a royal mess AND taking Legacy to/from 121 is going to be a mess ... at the same time. Is there planning or concern on or about the impact to Frisco citizens commutes? We love the improvements - they are one of the reasons we moved to Frisco 3 years ago. But, it seems a little planning would go a long way. What am I missing?

Joel Fitts, Senior Traffic Engineer
Username: Joel_fitts

Post Number: 88
Registered: 03-2008
Posted on Thursday, July 22, 2010 - 09:09 am:   


In general, we do try to coordinate construction projects so that alternate routes for one project are not disrupted by another project. However, large construction projects are very complicated and, once the process starts, many unforeseen circumstances can change their multi-year timelines. In addition, FM 423 is a TxDOT roadway and we have no control over when construction begins. The City’s long term planning for roadway construction does its best to factor in TxDOT construction timelines, but TxDOT projects sometimes get delayed by years.

In this specific case, these two construction projects should not interfere with each other. Construction of the double right-turn lane on Legacy at SH 121 is a relatively short-term project and most of the work will not disrupt traffic on Legacy at all. When a lane closure is needed, our rules require that it only occurs between 9am and 3:30pm in order to avoid disrupting rush hour traffic. In addition, the FM 423 project is so large that it is broken into three large segments. The segment that connects to SH 121 will be the last part that goes under construction, which is currently projected to begin in late 2011 and take two years to complete. Any traffic disruptions at FM 423 and SH 121 will take place well after the double right-turn lane at Legacy is complete.

Joel Fitts
Senior Traffic Engineer

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