Category Archives: Optimize Mobility

Whatever the Weather

During storms, driving conditions can cause travel delay, especially during the morning and evening commute.

When a storm hits the Wasatch Front, a twenty-minute commute can turn into an hour due to slick roads, start-and-stop traffic and low visibility. What if traffic could be managed more effectively to minimize the sluggish traffic speeds drivers experience during storms?

Recent technological advances in assessing weather and controlling signals have given traffic engineers better tools to keep traffic moving in stormy weather. On some corridors along the Wasatch Front, UDOT is taking a Weather Responsive Traffic Management approach that puts the tools to use.

WRTM uses sensors, traffic signal plans designed for storm conditions, and sophisticated traffic monitoring systems already in place to move traffic more efficiently during winter weather.

Traffic on Riverdale Road PhotoDuring winter months in 2013, an urban arterial in northern Utah served as testing area for WRTM. Riverdale Road intersects a busy shopping district and connects four Utah cities with Interstates 15 and 84. Over 47 thousand vehicles travel the corridor each day.

UDOT’s results in managing Riverdale Road traffic during winter storms were very good – for motorists, that is. Drivers experienced less stopped time at intersections compared to other storm days, and overall, traffic speeds were not significantly impacted by weather.

Here’s how the WRTM system worked on Riverdale Road:

  • Traffic engineers created signal timing plans for implementation before or during a storm. The plans accommodate travel speeds that are likely during storms so that signalized intersections along the corridor work together to make traffic flow more efficient.
  • A Road Weather Information System unit was installed in the corridor. The RWIS helped meteorologists and engineers anticipate upcoming storm severity to decide which signal timing plan to employ.

    RWIS on Riverdale Road Photo

    RWIS on Riverdale Road

  • Detection units were installed overhead along the roadway. The new equipment is better at detecting traffic movement during storms, and the equipment gave UDOT traffic speeds.
  • To monitor traffic during storms, UDOT used a Signal Performance Metrics System that lets signal operators assess and adjust traffic in real-time. After a storm, the system can be used to evaluate how the signal plans worked.

Winter 2013 ended up being a challenging year to test the WRTM system. During testing, the Salt Lake City and Ogden area experienced one of the worst winter storms in the past decade. Nevertheless, post-storm review showed an average or above average improvement in performance in traffic operations in over half of the weather events, including during the major storm.

Post-storm analysis also shows that cars maintained a high level of progression from intersection to intersection with platoons of cars arriving on green lights. When platoons of cars arrive at intersections on green lights, traffic flow throughout the corridor is more efficient.

Based on the success of the Riverdale Road WRTM performance, UDOT plans to expand the system to other corridors.

UDOT assists with traffic management for Draper Sergeant Derek Johnson’s funeral procession

Photo of the funeral processon on I-215

The beginning of Sgt. Johnson’s funeral procession on I-215.

On September 1, 2013, Utah lost Draper Police Sergeant Derek Johnson in the line of duty. This tragic loss brings grief and heartfelt sadness, but also patriotism, gratitude and remembrance from whole communities. Nearly 4000 law enforcement, family and citizens joined the memorial service at the Maverik Center and tens of thousands of thankful citizens lined the procession route.

UDOT’s Traffic Management Division collaborated with many law enforcement agencies to ensure that traffic flow to and from the Maverik Center and along the procession route moved as smoothly as possible. UDOT’s traffic signal operations staff were deployed to key intersections throughout the Salt Lake Valley to assist with traffic control, while UDOT’s Traveler Information Manager was using the @UDOTTraffic

Photo of wall of images from the Traffic Operations Center

Staff at the Traffic Operations Center monitored the procession route on cameras throughout the Salt Lake valley.

Twitter account to update the public on lane and ramp closures. UDOT was listening to the police radio event channels to monitor the traffic flow along the procession route.

Photo of flags along and citizens lined up along 12300 South.

Citizens lined up along 12300 South in Draper to honor Sergeant Johnson. Photo courtesy of Mark Taylor.

UDOT worked with the Unified Police Department, Unified Fire Department, Salt Lake City Police, Draper Police, the Utah Department of Emergency Management and the Utah Highway Patrol for traffic management during the funeral and procession. Several other agencies not mentioned here came together honor Sgt. Johnson – an awesome tribute to a dedicated public servant.

I-15 CORE Selected as National Top-Ten Project; Now Up to Public Vote

I-15 and University Parkway Aerial photo

University Parkway

In August I-15 CORE was picked as one of the top 10 finalists for the 2013 America’s Transportation Award sponsored by the American Association of State and Highway Transportation Officials (AASHTO), AAA and the U.S. Chamber of Commerce.

As a finalist, I-15 CORE is eligible for either the Grand Prize, which is awarded by a panel of judges, or the People’s Choice award, which is based on public voting. The winner receives a $10,000 donation for a local charity, and UDOT has selected United Way of Utah County for the donation. United Way of Utah County works to create lasting improvements in the community in the areas of education, income and health.

To vote, go to the following link, nominate.americastransportationawards.org/voting and select I-15 CORE.  Each person can vote up to 10 times a day through Oct. 2.

I-15 CORE was completed in December 2012 as the fastest billion-dollar highway project built in U.S. history. The project included the widening and reconstruction of 24 miles of I-15 from Lehi to Spanish Fork and was $260 million under budget.

United Way of Utah County seeks to help those most vulnerable in the community, focusing on three areas that are building blocks of a good life: education, income and health.

This is a guest post written by I-15 CORE communications team member Christina Davis.

Update: Thanks to everyone who voted. We didn’t win the people’s choice award but did win the Grand Prize and $10,000 for United Way of Utah County. Congratulations I-15 CORE team and United Way!

GIS tools at work in UDOT Region Four

UDOT Region Four takes in half of the state. While other regions face heavy snow or urban traffic, Region Four’s challenge is to coordinate work over a large area. Geographic Information System (GIS) tools have helped that coordination process.

The following post is the first of a two-part series about how GIS tools help employees expedite work and refine the quality of information needed to improve the transportation system.

Data Portal screenshotGIS data can be accessed at the UDOT Data Portal.  Much of the information on the site is geo-referenced – that is, given an exact spatial location. The UDOT Data Portal also has tools to view and analyze the data sets. Tools include maps and the Linear Bench, a straight line diagram generator. Both tools can be populated with multiple data sets, like the location of culverts or bridges. Data sets can also be downloaded.

Maps and apps improve work coordination

The Utah Prairie Dog, which occupies habitat within the right-of-way of many highways in Region Four, is afforded protection under the Endangered Species Act. UDOT recently completed a formal consultation with the US Fish and Wildlife Service that defined measures to minimize impacts to this species.

As part of implementing these measures, UDOT uses GIS and GPS tools to identify and quantify the acreage of habitat of temporary and permanent impacts. The tools expedite surveying and monitoring efforts so UDOT can quickly complete necessary road work.

Material pits are the sources of rock, sand and gravel used on construction and maintenance projects. Pits located on BLM or US Forrest Service land require permits.

An app that geographically displays the pits along with their permitting information is helping UDOT employees stay on top of the permitting process. The app generates an automatic email six months before expiration of the permit so UDOT won’t risk losing access to pits.  

I-15 CORE Wins Two Safety Awards

UDOT’s I-15 CORE and Provo River Constructors were recently selected by the American Road & Transportation Builders Association as winners of 2013 Roadway Work Zone Safety Awareness Awards in the local educational campaign and training categories. UDOT won for its campaign on the lane split traffic configurations and PRC won for its overall safety program that included their “Hands-on Safety” outreach.

Lane Splits Outreach Campaign

As part of I-15 CORE construction, the lanes on I-15 in Orem and American Fork were split around the construction zone. The lane splits created a communication and traffic challenge, as drivers would need to know which lanes to use long before they reached the area – so they could either exit or stay on the freeway.

The maintenance of traffic (MOT) and communications teams developed a comprehensive outreach campaign that would raise awareness of the upcoming traffic configuration and provide information on how to safely navigate them and divert at least 20 percent of traffic, to keep the freeway flowing smoothly. The campaign included TV and print news stories, radio advertisements, social media and direct mail. A highlight of the outreach campaign was a clever movie theater ad that played like a romantic-comedy trailer.

In less than one month, over a quarter-of-a-million movie goers saw the movie trailer and more than 8,000 viewed the instructional video the month before the lane splits were in place. As the real sign of success, traffic continued to move smoothly through the construction area while the splits were in place.

PRC’s Hands On Safety Campaign

PRC had to build 24 miles of I-15 in just 35 months, but the I-15 CORE design-builder still made safety its number-one priority.

PRC carried out a comprehensive safety program that all employees adopted in their daily work. All of the nearly 6,000 employees attended a mandatory Project Safety and Railroad Orientation before they could start work. Weekly toolbox safety meetings, monthly “All-Hands” safety meetings, safety pre-planning and pre-shift safety task planning, jobsite inspections, accident investigations, medical treatment management, and tracking of any indicators and trends before and after incident were all required.

Even with all this training, management began seeing a trend of hand injuries among work crews. To reverse this trend, PRC developed and implemented a “Hands-on Safety” program emphasizing pinch point awareness and hand protection guidelines. The program included presentations, posters and a policy change to require gloves to be worn at all times when handling tools and/or materials.

The success of PRC’s work zone safety approach resulted in crews achieving one million workhours without a recordable incident, and one million work-hours without a lost-time incident on four separate occasions.  PRC put in over 7 million work hours to build I-15 CORE and achieved a safety record that was four times better than the national average in the construction industry.

UDOT’s Road Weather Information System Network helps with safety

RWIS Network Map

UDOT RWIS network

Utah’s unique geography can be a challenge for traffic management and safety. Many of the critical highway routes in the state are in rural areas and can be prone to flooding, snow drifts, landslides, high winds or low visibility due to wild fire smoke. UDOT’s Road Weather Information System (RWIS) network currently has nearly 80 deployments throughout the state. An RWIS unit has several weather sensors that calculate wind speed, precipitation type, roadway temperature and more. Some RWIS have a traffic camera as well.

Utah has had an active winter and spring with several large storms, flooding and landslides. In June, UDOT deployed a portable RWIS unit near Monument Peak on SR-31. This site was adjacent to an area that was burned in a forest fire and was at risk for landslides. The portable RWIS can be relocated at a later date for other uses. The RWIS sends alerts to the UDOT Traffic Operations Center (TOC) meteorologists who can then contact UDOT crews and UDOT management working in a specific area and alert them to any danger of landslides or flooding. The alert information is also shared with the National Weather Service, the National Forest Service, the United States Geological Survey, Utah Highway Patrol and other agencies. UDOT contracts with Northwest Weathernet for meteorological services and RWIS installation.

Photo of portable RWIS station

Portable RWIS unit being deployed for use during the Rockport 5 Fire

 

Screen shot of RWIS alert

A rainfall alert from the portable RWIS

 

For more information about our use of RWIS also check out RWIS Update and Forecasting for Smarties.

Innovative Contracting

In recent years UDOT has been able to implement innovative bridge building techniques but do you know what the impetus for this was? It started with innovative contracting. By utilizing these types of contracts we are able to involve the construction industry earlier for more efficient delivery of our projects.

Colorado River Bridge

The Colorado River Bridge project was completed using DBB. A specialty designer was hired and then also contracted to assist with inspection during construction.

We use three basic contract types: design-bid-build (DBB), design-build (DB) and construction manager/general contractor (CMGC). Each has its own benefits and risks and UDOT project managers, in coordination with UDOT senior leaders, determine early on what type of contract will meet the needs of their project and ultimately provide the best product (aka road, bridge, etc.).

Design-Bid-Build

DBB is our traditional method of contracting and is the most familiar to everyone. With these contracts a designer completes their part of the process before a construction contractor is involved. Basically, the name explains it all: first the design is completed, then it is put out for bid and finally a contractor is selected to build the project. The majority of our projects use this type of contract.

Geneva Road

It was determined that we could get a better price using DB on the Geneva Road project by allowing the contractor to propose the most efficient design while maximizing the available funding.

Design-Build

DB came about as a result of the 2002 Winter Olympics. The executive director at the time was Tom Warne and I-15 needed to be improved through Salt Lake County to meet the increased demands the Olympics would put on the highway. To meet the tight timeline Mr. Warne worked with legislators to allow UDOT to use a new method of contracting, design-build.

DB contracts allow for the design and construction to be completed under one contract. The contractor actually manages the design and construction, and is involved from the beginning. This means the company that will be building the project is part of the discussion as elements of the project are designed. Because of this early contractor involvement, the time frame for a project is greatly reduced. Contractor involvement is also what has brought about innovations such as bridge moves; who better to bring new ideas to the table than the one who will be putting them into practice.

S.R. 14 Equipment

A landslide took out S.R. 14 and made it impassable. In order to have the most innovative design, and to get construction started right away, CMGC was selected. This also allowed us to develop a design utilizing equipment the contractor proposed.

Construction Manager/General Contractor

CMGC is somewhat similar to DB in that it also shortens the timeline between design and construction and allows for innovation since the contractor is involved from the beginning. The difference is that the contractor is involved during the design process as part of a team managed by UDOT, working alongside a design consultant. Another difference is that while the contractor may continue on past design into construction, if they meet all of the requirements, we also reserve the right to sever the contract once the design is complete making it a design-bid-build.

CMGC allows us to use some of the positive elements from both DBB and DB. The idea for this came from the building industry and we saw it used on a transportation project by the city of Phoenix, Arizona in 2004. Following the success of DB we wanted to include another innovative contracting method.

In the end our goal is to provide our project managers with options so that they can build the best project possible. These innovative contracting methods allow them to select a delivery process that keeps low bid in the forefront, but that also allows for new ideas and practices to emerge.

Note from author: Special thanks to Michelle Page, Project Controls and Innovative Contracting Engineer, and Michael Butler, Contract Administrator, for their help with this post.

UDOT Traffic App Tutorial

Wouldn’t it be nice to have access to all of Utah’s weather, traffic information, major construction and road delays? Fortunately the Utah Department of Transportation has made this possible through a smart phone application called “UDOT Traffic”.

The traffic app has several different features which include a detailed map, alerts, road weather and mountain pass information. All of this data comes from the UDOT Traffic Operations Center (TOC) which provides 24/7 monitoring for roads around the state.

Here is a step by step tutorial of how to utilize the app’s features and information.

The map contains several different options that include: cameras, incidents/planned events, construction, overhead freeway signs otherwise know as Variable Message Signs (VMS) and traffic congestion. With your smart phone you can zoom to common locations, search a certain address or use your current location.

Areas of Utah can be selected based on common locations as well as being searched.

Areas of Utah can be selected based on common locations and searched as well.

Specific symbols can be selected or deselected to find a specific camera, construction zone, sign or alert.

Specific symbols can be selected or deselected to change what is visible on your map.

This map of Utah contains symbols representing cameras, construction sites, alerts, and VMS signs.

This map of Utah contains symbols representing cameras, construction sites, alerts, and VMS.

Map with just construction.

Here is a map with all the construction sites listed in Utah. By selecting a specific barrel, details can be found about the place, duration and lane closure information.

A camera view from US-6.

This is a camera view from U.S. 6 but other highways are available on the UDOT Traffic map. Camera images are updated regularly and include a time stamp so you know how recent the image is.

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VMS can also be viewed from the app. These show current travel times between the sign and certain locations.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Alerts are the second feature available from the main menu across the bottom and contain advice and warning information regarding emergencies, TravelWise, road conditions, incidents, special events, construction and seasonal roads.

An example of an alert with information on the locations and nature of the incident

Details on each alert can be accessed from a list or viewed on the map.

An example of an alert with information on the locations and nature of the incident

This is an example of an incident alert on the map. It contains information on the location, nature of the incident and impact.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The third main feature of the app is all about weather. This section contains travel advisories, available during the winter months, as well as road forecasts and reports directly from our weather stations. Road forecasts and weather station data are available all year.

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Travel advisories, weather stations and road forecasts are available in the Weather section of UDOT Traffic App.

This is an example of a Road Forecast that will update every 3 hours with current weather.

Road Forecasts are created by TOC meteorologists and have details broken down in 3 hours increments up to 24 hours in advance.

The Weather Stations display graphs and data for what to expect concerning temperature, wind, dew point etc.

The Weather Stations option displays graphs and data directly from RWIS around the state. This includes temperature, wind, dew point, etc.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The final portion of the app includes Mountain Passes. Mountain Passes are often impacted first by incoming weather. To help travelers understand what they will encounter in these areas we have consolidated them into one part of the app.

 A list of all the mountain passes in Utah are available in this section of the app.

A list of all the mountain passes in Utah are available in this section of the app.

Once a mountain pass is selected information with cameras and weather is available.

Once a mountain pass is selected information specific to that area, including cameras and weather forecasts, are available.

A camera view of Sardine Summit mountain pass.

A camera view of Sardine Summit mountain pass.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

These are some tips and tricks to navigating UDOT ‘s Traffic App. The application is available for iPhone and Android devices and can be downloaded for free through your smart phone’s app store.  For more information on how UDOT receives data and traffic information check out this blog written about UDOT’s  Traffic Operations Center. http://blog.udot.utah.gov/2013/06/optimizing-mobility-udots-traffic-management-division/

Optimizing Mobility – UDOT’s Traffic Management Division

TOC Control RoomThe UDOT Traffic Management Division (TMD) houses UDOT’s Traffic Operations Center (TOC), the traffic signal management division, traveler information program and deployment and maintenance for Utah’s robust Intelligent Transportation System (ITS) network. UDOT utilizes the resources from within the TMD to plan for and react to any type of event that reduces capacity on Utah interstate and highway routes.

The UDOT TOC is operated 24 hours a day, 7 days a week, 365 days a year! TOC operators actively monitor traffic, looking for road debris, crashes or lane closures due to construction. This sophisticated ITS network includes traffic cameras, overhead message signs, vehicle detectors and much more. The fiber optic network that connects the ITS devices to the TOC provides an excellent, fast connection that allows TOC operators to react at a moment’s notice. “Our TOC operators monitor traffic throughout the state from our facility in Salt Lake City. If a crash occurs in St. George, our operators are able to use traffic cameras to locate the incident and post a message warning motorists on an overhead message sign within a matter of seconds,” said Mike Evans, Control Room Manager.

In addition to day-to-day traffic problems, the UDOT TMD also provides traffic signal support for large-scale special events. A signal management operator can remotely control nearly 80% of UDOT’s traffic signals from the TOC.

UDOT’s Traffic Management Division is charged with operating a smart transportation network. Using technology to help manage traffic is an excellent way to optimize mobility, reduce delay and increase roadway capacity. To schedule a tour of the UDOT Traffic Operations Center, please call(801) 887-3710.

Parley’s Canyon Pipe Replacement

I-80 Drainage Pipepipes 1

UDOT is working with W.W. Clyde and Geneva Pipe to begin the replacement of an old drainage system in Parley’s Canyon. The construction, which started at the end of May, begins at the mouth of Parley’s Pipes 2Canyon on I-80 and will extend about 2.5 miles east into the canyon. The pipe will serve to drain Salt Lake City’s excess water as well as the canyon runoff.

The current 50-year-old pipe is buried, in some areas, more than 30-40 feet under the freeway. Crews will work to replace the deteriorating corrugated steel pipe with a new durable concrete pipe. The sections of pipe that are currently underground will be capped off and filled.

This blue metal casing is placed over the wired frame and then transported to the cement pouring deck.

This blue metal casing is placed over the wired frame and then transported to the cement pouring deck.

The new system will be built to the side of the road to make service and maintenance more manageable. This will also keep closures and impacts to a minimum during construction and future maintenance.

Each section of pipe weighs about 25,000 pounds and is 12 feet long. Geneva Pipe creates these massive cement structures at their site in Orem. The specific cement used is built to endure harsh conditions and erosion over time.

The cement is then poured and quickly mixed into the metal casing on the deck.

The cement is then poured and quickly mixed into the metal casing on the deck.

The pipes are made in the Geneva warehouse where the cement is poured into a metal casing that is tightly compacted to create large vertical cylinders that will dry overnight. The type of cement used dries fast because of the way that it is quickly sifted and tightly compacted under extreme amounts of pressure.

These are the wet concrete pipes that will dry overnight.

These are wet concrete pipes that will dry overnight.

Overnight blasting for the construction has already begun and drivers should expect up to 15 minute delays while blasting occurs.

Overnight lane restrictions will also be necessary but one lane in each direction will remain open. Motorists should expect delays, a reduced speed limit and lane closures throughout the project until November 2013. At least three lanes will remain open during high traffic times, including events and on weekends.

Here is a video of the blasting happening at I-80.