The Utah Department of Transportation has received your request and we will be looking into the issue. Thank you for taking the time to let us know.

Thank you for contacting UDOT. We have turned on the ramp meters because by turning on the ramp meters this helps on ramp traffic merge safely without interrupting mainline I-15 traffic flow which gets heavy between Lehi Main Street past Pioneer Crossing. If you feel there is still an issue please contact us directly at 801-887-3700.

Look at how far backed up it is..

Issue 15510371 has been marked as a duplicate of this issue.

Issue 15510780 has been marked as a duplicate of this issue.

Please turn off the ramp meters at I-15 S American Fork for morning commute. It is backing up way more than 5 min. The change to Pioneer Crossing lights for morning commute was a huge plus but this has made everything just as bad as the backup that was happening on Pioneer Crossing. There is no need to have them for sure after 8:30. The traffic on 1-15 south is not that much that time of the morning.

It’s backed up to mill pond!

This need to be addressed. This can not stay on like this. At least allow 3 cars per green light at a minimum. There are two lanes to merge and it has never been backed up here in the mornings until you turned this one.

This is a 10 minute delay for everyone going southbound from 8-9 AM. It has been backed up all the way to the stop lights by Millpond at the intersection of Pioneer Crossing and 7350 W.

Thank you for contacting UDOT. We understand your concerns about the delays on the southbound on ramp at Pioneer Crossing. By turning on the ramp meters we are helping to maintain the traffic flow on mainline I-15. Metering the on ramp traffic assists in the merging of traffic from Pioneer Crossing safely onto I-15. We are currently in the process of examining and adjusting the on ramp metering rates to try to find a manageable balance. Please let us know if we can be of further assistance.

Issue 15522764 has been marked as a duplicate of this issue.

Issue 15516941 has been marked as a duplicate of this issue.

I-15 has never been backed up right there so that makes no sense. This needs to be addressed immediately. Why was it turned on just a few weeks ago? This has never been an issue until you turned it on.

Issue 15529392 has been marked as a duplicate of this issue.

Thank you for you patience while we work to get this operation correct. Three weeks ago a citizen via this application requested that we look at metering the southbound onramp because of the sheer volume of traffic coming onto I-15 from Pioneer Crossing, and from the perspective of the citizen this volume not only created a safety concern for the merging traffic but was causing the mainline I-15 operations to also degrade with slower speeds. While looking into this concern, we found that there are roughly 2200 vehicles per hour that want to join I-15 from 7am to 9am, with the peak hour of 8am. This total volume exceeds the capacity of a freeway lane here in Utah (1800 vehicle per hour - is our ideal conditions capacity.) While looking at the on-ramp volumes we also verified the operations of I-15 in the section from Lehi Main St to 500 E in American Fork. This segment routinely has periods within the AM commute where speeds drop into the 60mph range. With those slower speeds the capacity of I-15 reduces forcing more people to have longer commute times. (The Screenshot details the past three weeks of I-15 mainline vehicle speeds measured directly adjacent to the southbound ramp meter.) The three weeks indicate the variability of I-15 speeds using the Median, 20th and 80th percentiles and the AM peak slow downs are very visible in the data in the two weeks prior to this week. It is also very evident the benefit that metering the southbound on ramp has been this week. However, I will admit that I missed the mark with this operation and the delays far exceeded expectations. I apologize. Changes have been made to the metering operations as of 8:00am this morning that allows more than one lane to be green at a time, and in the highest demand periods provide the ability to increase metering equal to the demand, while maintaining gaps (staggering) between vehicles. There will still be delays, but from observations today, they are much less.
It is the plan to continue to meter the southbound ramp at Pioneer Crossing and Lehi Main St in aims at maintaining high throughput capacity on I-15 mainline. There is also an added safety benefit for the traffic that is merging to I-15 in the vary large platoons from eastbound Pioneer Crossing. It is expected that in the next few weeks, the signal timing in the AM period will be adjusted on Pioneer Crossing which may further increase the platoon sizes that arrive at the ramp meter. We will work to continue to monitor the ramp in the AM periods from 7:00am to 9:00am tweaking and adjusting, as best we can, to accommodate safety and efficiency for as many as possible. If you would like to talk with us directly, please call 801-887-3700 Option 2. Again, thank you for your patience as we work to get this right. Scott.

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Why is it not adjusted to updated to allow 3-4 cars per light per lane? It makes 0 sense to back it up for over a mile for a small delay. Pioneer crossing is a nightmare for anyone who lives in Saratoga springs or Eagle mountain and tries going southbound to Orem Provo.

Still backed up.. your changes have done nothing

Issue 15543316 has been marked as a duplicate of this issue.

Still needs fixed…

Issue 15550819 has been marked as a duplicate of this issue.

Why is it still on after 9 AM?

The ramp was extremely full at 9 am today. I extended the time by 15 minutes so we did not discharge a ramp full of vehicles onto the freeway all at the same time.

I am not sure how big an issue the I-15 traffice really is. Speeds in the 60 mph range are normal for communting periods, would be even slower in many major cities. Having traffic back up to and passed Millpon Road is ridiculous. I don't know if we can prove it is more safe for I-15 traffic or not, but those delays are immense. We really just need more roads east/west in the area. Roads that are full freeways (think Pioneer Crossing and Pony Express). In the meantime we really need to stop the metering here or like other said change the signs and allow 3-4 cars per green. There is plenty of time to merge onto I-15 and I think UDOT is over thinking the problems I-15 drivers are having in the area compared with the huge delays for those coming from Pioneer Crossing. With our growth ( and winter coming) it is only going to get worse.

Issue 15616249 has been marked as a duplicate of this issue.