City of Kingman

Gordon Drive Widening/Reconstruction

STP-KNG-0(203)A: 0000 MO KNG SS91

ENG08-061

July2010

SouthWest Traffic Engineering, LLC (SWTE) is an Arizona-based traffic engineering firm providing comprehensive traffic engineering design and transportation planning/analysis services. As a Firm which has completed projects throughout Arizona, they are familiar with City of Kingman, Mohave County and Arizona Department of Transportation (ADOT)Standards, along with many of the Arizona County and local agency Standards including Traffic Control, Traffic Signals, Roadway Lighting, Roadway Signing and Pavement Marking Design Guidelines. SWTE currently providesTraffic Engineering On Call services to not only the City of Kingman, but also ADOT.

SWTE has worked with the City of Kingman recently completing the traffic engineering design for Airway Yavapai Traffic Signal and Kingman Crossing Boulevard/Santa Rosa Boulevard Traffic Signal. In addition, SWTE is providing traffic engineering design services for the ADOT Rancho Santa Traffic Interchange project currently at the 95% plan level.

With a staff of fourprofessionally registered civil engineers licensed in Arizona, all of whom are registered as Professional Traffic Operations Engineers (PTOE), two engineers-in-training (EIT’s), and three designers who focus only on Traffic Engineering related tasks, SWTE has the capacity and expertise to perform all of the traffic elements associated with this project. SWTE is also able to offer multiple traffic engineering-teams who are able to work on separate traffic engineering tasks within one project (e.g. roadway signing/pavement marking design team, traffic signal design team). By having the capability of providing multiple internal teams working on the Traffic Portions of a project, SWTE is able to provide quality design for this project without over burdening a typical Traffic Engineering team staff of two to four people.

John Willett will serve as the Traffic Engineering Design Manager for SWTE ensuring that our Traffic Design team provides the required support tothe overall project Design Team.

The following are summaries of the qualifications and relevant experience of SWTE’s key team member:

John Willett, PE (26658), PTOE (1505) – Traffic Engineer

John has more than 21 years of experience in the civil engineering field, specializing in traffic and transportation engineering at both the state and local levels and is currently the Principal/Project Manager of the City of Kingman Traffic Engineering On-Call Contract for SWTE as well as the Senior Traffic Engineer for the I-40/Rancho Santa Fe Boulevard TI Project. His City of Kingman experience includes the traffic signal design and intersection improvements at Airway Avenue/Yavapai Street, Airway Avenue Townsend to SR 66 Improvements, Airway Avenue/Diamond Street Traffic Analysis, and Hualapai Mountain Road/Andy Devine Avenue Intersection Analysis.

While John will serve as the Traffic Engineering Lead, SWTE proposes the following internal Traffic Engineering Team:

Traffic Engineering Lead – John Willett, PE (26658), PTOE (1505)

QA/QC - Andrew Smigielski, PE (32339), PTOE (789), PTP (82)

Traffic Signals – Chris Williams, PE (42636), PTOE (2029) and Sabine Ellis (Designer)

Roadway Signing/Pavement Marking Design –Ben Good, PE (40976), PTOE (1434) and Jeff Plank (Designer)

All of the above SWTE staff are familiar with City of Kingman, MohaveCounty, and ADOT Traffic Engineering standards and are available to begin work immediately.

Design Issues

During the review of the RFQ and project site a few key items were noticed that were deemed worth noting. They are as follows:

Roadway Signing/Pavement Marking:

With the different lane addition to the roadway, two lanes eastbound, one lane westbound the roadway signing and pavement marking for this type of roadway section at the tie-ins on each side of the project limits, will be critical in limiting the possibility of bottlenecks in the area once the roadway is completely open to travel.

Traffic Signals:

The non-symmetrical widening of Gordon Drivewill play a key role in the design of the traffic signal at Willow Road. While a new traffic signal system at the intersection will be required to control the additional lanes, the traffic signal poles on the north side of Gordon Drive will need to be placed in their final location taking into account the future MohaveCounty widening of the westbound lanes of Gordon Drive.

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Gordon Drive Widening