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2017-08-01
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Home - Serving Arizona
Arizona has a unique environment housing a robust urban core, a plethora of small rural communities, and a delicate ecosystem. We've worked in all environments and our project experience proves it!
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Home - Our Firm
Foothills Traffic Engineering, LLC was formed in 2017 to provide specialized traffic engineering design and analysis for private and public sector clients. We have over sixteen years of experience working throughout the state of Arizona.
https://www.foothillstraffic.com/about-us
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2017-08-02
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About Us
Chris Williams, Founder | Foothills Traffic Engineering, LLC
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2017-08-02
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Services
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2017-08-08
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Contact Us
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2017-08-08
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Project Experience
Click HERE to learn more about ADOT Design Projects....
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Project Experience
Click HERE to learn more about Pinal County Projects...
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Project Experience
Click HERE to learn more about ADOT Design Build Projects...
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Click HERE to learn more about Traffic Impact Studies...
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Click HERE to learn more about Municipal Projects....
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Project Experience
https://www.foothillstraffic.com/adot-design-build
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0.75
2017-08-08
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ADOT Design Build - A new traffic interchange was designed for ADOT, allowing Perryville Road to have full access to Interstate 10 (I-10). A key project component was reducing the scale of the roadway lighting from 100-foot high mast poles to 69-foot median mounted poles. This change reduced construction costs by up to $800,000 while still adequately lighting the roadway without light-spill into adjacent neighborhoods. As lead traffic engineer, Chris was responsible for the traffic signal, roadway lighting, ITS and signing/pavement marking designs.
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ADOT Design Build
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ADOT Design Build - Lead traffic engineer for this ADOT/City of Glendale project which added HOV lane ramps to the Loop 101 and allowed an additional entrance/exit to University of Phoenix Stadium. The project was critical for the 2015 Super Bowl, held in Glendale. Design challenges included creating specialty traffic signal pole foundations and pull boxes which were designed into the ramp bridge structure. Chris was responsible for the traffic signal, roadway lighting, traffic control and signing/pavement marking designs.
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ADOT Design Build - As lead traffic engineer, Chris was responsible for the traffic signal, roadway lighting, ITS, signing/pavement marking and traffic control designs for the intersection of Grand Avenue/Bell Road. Raising the profile of Bell Road up and over the adjacent Union Pacific Railroad tracks was critical in reducing overall traffic congestion in the area. ADOT Project components included providing detailed traffic control plans during an extended closure of Bell Road during the summer of 2016.
https://www.foothillstraffic.com/traffic-impact-studies
daily
0.75
2017-08-08
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Traffic Impact Studies
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Traffic Impact Studies - Traffic engineer. This project included calculating the trip generation for Downtown Chandler and the area between Rural Road, Val Vista Drive, Baseline Road, and Riggs Road (Approx.110 square miles) using the existing land uses. A detailed traffic demand model (TransCAD) was developed of the Downtown Chandler area and for the entire roadway network in the model. The existing Chandler Synchro Model was revised, in conjunction with the development of the TransCAD model to reflect the current and proposed conditions. A gravity model and traffic assignment was run using the trip generation for the existing conditions. The traffic model was calibrated to match existing traffic volumes as provided by City of Chandler traffic counts and the 2008 MAG traffic model. Future traffic volumes in 2011, and 2028, were then estimated based on trip generation of known future developments such as the Chandler City Hall, Meridian West and other known downtown projects. Arizona Avenue was further analyzed under various roadway network configurations in order to evaluate the affect of providing various roadway connections in Downtown Chandler. The results of this analysis, which considered proposed traffic volumes, intersection level of service, right-of-way constraints and utility conflicts, was provided to the project team to assist in the selection of the preferred roadway network configuration.
https://www.foothillstraffic.com/adot-design
daily
0.75
2017-08-08
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ADOT Design
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ADOT Design - This project was an emergency roadway repair on I-40, which provides a critical east-west route for trucks traveling from Long Beach, California. A new roadway section was designed in order to fix multiple pot-hole areas and a crumbling roadway section. As lead traffic engineer, Chris Williams was responsible for the roadway signing and pavement marking designs.
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ADOT Design - As a project engineer Chris designed pavement marking, roadway signing, traffic control, traffic signal, interconnect and roadway lighting plans. The designs included custom sign formats and sign structure details. This project along with an adjacent segment ‘kicked-off’ the upgrade of SR 303L from a two-lane roadway to a full freeway cross section. Design elements developed on the first two segments set the tone for the future of the SR 303L corridor. Chris also lead internal efforts on post design including answering RFI’s and shop drawing review.
https://www.foothillstraffic.com/municipal-projects
daily
0.75
2017-08-08
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Municipal Projects - Supported former employer's traffic-consultant engineering services efforts for the City of Buckeye as lead traffic engineer. The City of Buckeye has moved forward with an Improvement District (ID) that roughly includes the area bounded by Dean Road, Jackrabbit Trail, Van Buren Street and McDowell Road. Traffic-consultant engineering design services, led by Chris Williams, included traffic signal design, roadway signing/pavement marking design, signing/pavement marking and traffic control plans for the project.
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Municipal Projects - Lead traffic engineer providing intersection improvement designs that included traffic signal modification plans, pavement marking, roadway signing, and lighting plans. Improvements included adding one additional lane on each approach to the intersection. Extensive coordination between the roadway engineer, the landscape designer, and the City of Chandler was required. The City also elected to have SRP install fiber optic vaults and conduit prior to the intersection roadway improvements which allowed the City of Chandler to have constant contact with the intersection of Ray Road/Alma School Road during construction. Chris also served in a post design role to answer RFI’s and reviewing shop drawings associated with the project.
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Municipal Projects - Lead traffic engineer responsible for traffic analysis which determined the lane configurations and turn lane storage requirements at the intersection taking future traffic volumes from the Wells Fargo and Intel developments into consideration. A roadway lighting analysis was then completed for the new LED lighting which was installed on Old Price Road, south of Queen Creek Road. Other project features included traffic signal modification, pavement marking and roadway signing plans. Challenges included coordinating signing with MCDOT and Salt River Project (SRP) .
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Municipal Projects - Served as lead traffic engineer providing roadway improvement design plans that included new traffic signal plans, a temporary span-wire signal plan, interconnect design plans, and LED roadway lighting plans. Designs included both Phase II and III of the project. Improvements involved widening Gilbert Road from one lane in each direction to two lanes in each direction with a wide median between Ocotillo Road and Hunt Highway. A unique aspect of this project was obtaining vertical clearance from Salt River Project (SRP) based on work being done within their easement on Ocotillo Road.
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Municipal Projects - Lead traffic engineer providing intersection improvement designs that included traffic signal plans at McQueen Road/Chandler Heights Road, pavement marking, roadway signing, roadway lighting and interconnect plans. This project allowed the City of Chandler to improve the cross section on McQueen Road to include two lanes in each direction while leaving median space for future widening to the ultimate six-lane configuration. Coordination was required with RWCD in order to cross existing irrigation facilities with the new roadway lighting and interconnect conduits needed for the project.
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Municipal Projects - Traffic engineer. As a part of the City of Buckeye’s On-Call engineering contract, Chris has performed multiple TIA reviews, design reviews and traffic signal warrant analyses. These TIA reviews have allowed Chris to work as a partner with the City of Buckeye in the role as technical reviewer. TIA reviews for the City have included: Festival Ranch Planning Unit 3 Master TIA, Jackrabbit Square TIA, Trillium Master TIA and Desert Hills Baptist Church TIS.
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Municipal Projects
https://www.foothillstraffic.com/pinal-county
daily
0.75
2017-08-08
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Pinal County - Lead traffic engineer. This project extends Gantzel Road south of Bella Vista Road to eventually connect with Hunt Highway. The first phase of this project included reconstructing the existing intersection of Bella Vista Road/Gantzel Road to include a widened south leg that matches the existing north leg of the intersection. In conjunction with these improvements, Chris prepared a traffic analysis which determined the lane configurations and turn lane storage requirements at the intersection taking into account future traffic patterns that would result from the extension of Gantzel Road south to Hunt Highway. The existing and new turn lanes at the intersection were also sized appropriately based on Pinal County standards and the traffic volumes calculated in the traffic study. Chris was responsible for the traffic signal modification design at the intersection which was upgraded with new ADA pedestrian ramps and push buttons.
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Pinal County - Lead traffic engineer. On this project Chris completed traffic signal design plans at the intersections of: Gary Road / Skyline Drive Hunt Highway / Village Lane and Hunt Highway / Mountain Vista Boulevard. Chris prepared bid ready PS & E plans for the intersection of Gary Road / Skyline Drive in advance of the Hunt Highway construction. This intersection was bid as its own project in order to complete construction before the paving operations were underway on Hunt Highway. Hunt Highway Phase II improvements are complete and now into Phase IV.
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Pinal County
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Pinal County - Lead traffic engineer. Maricopa County Department of Transportation (MCDOT) and Pinal County worked together to improve this intersection which lies on the County Line between the two jurisdictions. In order to improve traffic operations prior to the completion of the Hunt Highway widening project, the project team decided to widen the intersection of Gary Road/Empire Boulevard and upgrade the span-wire traffic signal to a permanent, Pinal County owned signal. Chris served as lead traffic engineer responsible for the traffic signal design and coordination with SRP resolving multiple overhead clearance issues between the new signal equipment and the existing transmission lines.
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0.75
2025-05-09