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Posted on Monday, September 16, 2002 - 12:32 pm:   

On my way to work the past few mornings, I noticed that the light on South bound Hillcrest at 121 is "short cycling". The green light seemed much shorter than in the past. This morning I timed it, with the green lasting all of 15 seconds.

Traffic is routinely backed up to Warren on Hillcrest in the mornings, so I do not understand why someone would shorten the green light there. Also, earlier this year the taxpayers sprung for widening this same intersection with a right turn only lane from Hillcrest added as part of the project. To date, this lane remains closed to traffic. Is there a reason against having two right turn only lanes here? When will the taxpayers get to use this section of the roadway that we paid for?

Brian Moen, Traffic Engineer (Brian)
Posted on Tuesday, September 17, 2002 - 01:51 pm:   

I have contacted the City of Plano concerning the timing of the traffic light. We will also observe conditions over the next couple of mornings.

The additional right-turn lane has not been opened to provide a second right-turn lane due to safety concerns. The concern stems from the angle between SH 121 and Hillcrest combined with the heavy volumes on SH 121 and the heavy AM peak right-turn volume. The only way to address this concern with the two turn lanes is to prohibit right-turns on red. I think if that signage were put into place, the overall delay over the whole day would be greater than the delay experienced during the AM peak.

The turn lane was added now knowing the frontage roads will eventually be there and that Plano’s side of the intersection would be improved. Plano has indicated that Robinson will only be improved as development occurs. It was significantly cheaper to install the turn lane during the overall construction of Hillcrest rather than constructing it as a single project later.

The other possibility to consider is taking an alternate route such as Coit, Ohio, or Preston.

Brian Moen
Traffic Engineer

Posted on Tuesday, September 24, 2002 - 01:52 pm:   

I would like to suggest the Frisco Police monitor this intersection for cars who get out of the right hand only turn lane because they are impatient and speed ahead and turn right from the lane which is specifically designated for traffic going straight ahead on to Robinson Road. I can't even count the number of cars I see do this every morning on Monday through Friday between the hours of 7:00 am to 7:45 am. They will cause an accident and isn't this illegal?

Todd Renshaw, Chief of Police (Todd)
Posted on Tuesday, September 24, 2002 - 04:08 pm:   

Yes, it is illegal and I have asked officers to watch for it. Thanks for the information.

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