Walnut Creek Signal Master and Controller Upgrade
DKS Associates prepared a Master Plan to guide the implementation of a new citywide traffic signal system, including Central & Satellite Traffic Operations Centers, local controller equipment, CCTV camera equipment, and network hardware and software. DKS held a series of meetings with staff from the City as well as County authorities to determine an optimal combination of local controller hardware and signal master software. The choice of hardware and software was integrated into a full PS&E package, which detailed the installation of the controllers, CCTV cameras, as well as central network hardware and control equipment. The first stage of implementation consisted of 21 Type 2070 and 2070N local controllers, managed by Naztec Streetwise signal master software. CCTV cameras were installed at three locations within the City. Phase 2 installed six CCTV cameras, and Phases 3 and 4 installed new cabinets, 53 controllers, and seven CCTV cameras. The four-year program will eventually cover 80 Signals and 16 CCTV cameras . System integration is a key component of this project. Phases 1-3 provided communication to controllers and cameras over the Citys existing Signal Interconnect Cable (SIC). Phase 4 continues this and adds new SIC to the Citys existing network. In the future, cable modems will be used to transmit signal data as well as video and control data for the cameras over a fiber optic network. Cabinet-mounted encoders will digitize the video and control data, prior to transmission of the data through the cable modems. DKS will assist in the selection of the appropriate decoding and switching hardware to provide the required signal and video data to City staff. A connection will be provided to allow access to video through the Citys web server, and a remote link will be provided for County staff. Construction of Phases 1 and 2 and the design of Phases 3 and 4 are complete. Phases 3 and 4 will be fully implemented by mid-2003.

Fairfield Traffic Signal Designs
DKS Associates prepared full PS&E packages for three separate bid sets encompassing the six signals. The bid sets included a signal modification (to accommodate dual left-turn lane and removal of off-ramps), new signal installation at four City intersections, and a new signal installation at Caltrans intersection in the City of Fairfield. These bid sets included the following locations: * Signal modification: Air Base Parkway at Dover Avenue * New City Signals: Chadbourne Road at Courage Drive, Claybank Road at Quail Avenue, Claybank Road at Tabor Avenue, Dickson Hill Avenue at Dover Avenue * New Caltrans Signal: Chadbourne Road at State Route 12 Eastbound Ramps Design elements for the project included Model 2070 controllers, Model 170 controllers, 332 cabinets, battery back-up systems, Opticom EVP, and spread spectrum radio interconnect. DKS surveyed existing utilities and physical conditions, conducted traffic volume counts, and performed traffic signal warrant studies in accordance to 2003 MUTCD/ California Supplement, using this information to prepare the conceptual design and operation of the signals for City review. DKS worked with PG&E to obtain new service points and relocate existing utility poles, and coordinated with Caltrans to ensure that their requirements and standards were met on this project.

Santa Cruz Traffic Signal Design and Modification
DKS designed three new signals at Soquel Drive/Winkle Avenue, Soquel Drive/Lucca Lane/Mattison Lane, Graham Hill Road/Lockewood Lane. DKS also designed a signal modification at Graham Hill Road/Mount Herman Road. The scope involved on the new signal designs along Soquel Drive included surveying, installation of ADA curb ramps, sidewalk, retaining walls, signing and striping along Soquel Drive from Chanticlear Ave to Soquel/Lucca/Mattison Lane, and wireless signal interconnect along Soquel Drive between Soquel/Winkle and Soquel/Lucca/Mattison Lane. The signal installation at Graham Hill /Lockewood Lane included civil design of the widening of Graham Hill Road, retaining walls, signing and striping, ADA curb ramps. The signal modification included adding dual right turn lanes on Graham Hill Road, curb ramps, median modifications, and signing and striping at the intersection.

Piedmont Signal Design Evaluation
DKS Associates was the responsible firm for developing alternatives to address City Council concerns regarding safe pedestrian crossing at key intersections across Grand Avenue and traffic speeds along the length of Grand Avenue. DKS Associates worked with City staff to develop several alternatives for pedestrian crossing and for traffic calming along a two-mile segment of Grand Avenue in the City of Piedmont. These alternatives had to be implemented within the existing curb-to-curb right of way. The alternatives included additional striping and a concept plan to replace two travel lanes on the arterial and replace them with two bike lanes and a two way left turn lane. DKS developed a cross-section that created left turn pockets at intersections, and class II bike lanes for the entire 2 mile segment under study. These alternatives were analyzed with relationship to cost, pedestrian/ bicyclist safety, and operations (particularly impact on movement into and out of fronting residences and businesses). DKS prepared conceptual plans of these alternatives for presentation to City Council and citizens.

Sunnyvale Traffic Signal Design
DKS Associates prepared the full PS&E package for three new traffic signal installations in the City of Sunnyvale at the following locations: fair oaks Aenue/Iris Avenue, Fremont avrnue/Wright Avenue, and Lawerence Station Road/Elko Drive. Design elements included Model 170 controller and cabinet standards, bycicle detectors for bike lanes, LED signal heads, Emtrac EVP, spread spectrum radio interconnect and system detector loops. The design for lawerence Station Road/Elko Drive included interconnect to the nearby County of Santa Clara intersection along Lawerence Expressway.

Oakland Pedestrian Safety Signal Design
DKS prepared the designs for eight new traffic signals and traffic signal modifications within the City of Oakland as part of their Pedestrian Safety Improvement Program. Project elements included replacement of curb ramps, signal equipment upgrades, new controllers and cabinets (Type 170E), emergency vehicle preemption, video detection, pedestrian bulb-outs and flashing beacons, and new lighting. DKS was responsible for preparation of detailed PS&E for the project.

Napa Traffic Signal Designs
DKS prepared detailed design documents for the construction of three new traffic signals within the City of Napa, involving a range of skills including signal design, civil engineering improvements, surveying and right-of-way definition and signing and striping. Signal design elements included video detection, emergency vehicle preemption, lighting analysis, controllers (NEMA TS-2) and cabinets.

City Of Vancouver Burton Road
DKS was responsible for traffic signal and roadway lighting design of improvements to Burton Road Phase 1 and Phase 3. Specific high tech “pedestrian friendly” design elements were evaluated to improve safety for crossing this street. The Phase 1 improvements extend from Andresen Road to 86th Avenue while the Phase 3 improvements extend from 112th Avenue to 142nd Avenue. A full lighting analysis was performed for both these projects to determine light levels and uniformity ratios that meet City of Vancouver standards. Particular attention was paid to minimizing light intrusion to adjacent residential homes. Traffic signal designs (which meet City of Vancouver standards) are currently being prepared at six intersections.

Cornelius Baseline – Adair - 4TH Signal Design
DKS Associates developed traffic signal plans and signing/striping plans for two intersections along T.V. Highway (ORE 8) and Adair Street in Cornelius, Oregon. DKS worked closely with ODOT, Washington County, and the City of Cornelius to build consensus among agencies and successfully complete this project. The signal designs included provisions for connecting these two signals into the existing signal system along T.V. Highway via aerial interconnect cable. Also included in these designs was providing interconnect for communication with the nearby railroad. DKS was responsible for construction services/field inspection during the construction phase of this project.

Cupertino Traffic On-Call
Between 1999 and 2001, DKS performed on-call traffic engineering services for the City which included bike facility designs, traffic operations studies, traffic signal interconnect studies and design, and assistance with grant applications for many different funding sources including TFCA, TEA-21 and Hazard Elimination Safety (HES). Additionally, DKS performed detailed engineering cost estimates for different types of projects including traffic signal installations, communication network installations and freeway interchange improvements. Some of the projects which we provided traffic engineering and civil engineering consulting services are: Cupertino ATMS project – DKS assisted the City in selection and implementation of a new traffic advanced management system (ATMS) Wolfe Road and Miller Lane Bike Lane Designs – DKS designed bike lanes along Wolfe Road and Miller Lane which resulted in improved traffic flow roadways and better safety for bikes and pedestrians along the arterials. The projects also included civil engineering improvements such as removal of median islands to accommodate the bicycle lanes. Stevens Creek/Saich Way Signal Design – DKS prepared a PS&E package for the installation of a new traffic signal at this location. The project included signing and striping, and civil engineering improvements such as ADA ramps and sidewalk improvements. Wolfe Road/I-280 Interchange Safety Improvements Design – DKS prepared a detailed evaluation of this interchange to improve safety and overall traffic operations at the oldest interchange in the City. As part of our work, we studied and prepared recommendations on an ultimate buildout configuration for the interchange to accommodate existing and future traffic volumes along this corridor.

Capital Mall U-Turn 3rd Street
Feasibility and operational study followed by preparation of PS&E for a traffic signal installation -DKS Associates prepared the PS&E documents for a new traffic signal installation as part of the development of a new hotel on the south side of Capitol Mall (SR 275). This project involved the design of extensive geometric modifications at this intersection to accommodate the hotel driveway and travel pattern changes. A significant factor in this design was the close proximity of a railroad crossing and a lift-span bridge immediately west of the intersection. The signal designs included interconnect to both the railroad crossing controller and the Bridge to support pre-emption operation. As part of this project, DKS acquired the necessary encroachment permit from Caltrans, and developed interim design plans for operation of the intersection while the bridge was being repainted.

Burlingame Traffic Signal Design
DKS provided plans, specifications, and cost estimates for traffic signal design for two locations in the City of Burlingame. The project entailed installing a pedestrian signal at Morrell Avenue and California Drive, and installing a traffic signal at California/Carmelita Dr., and signal interconnect to the adjacent traffic signal at Broadway/California Dr. Handicapped ramp, street modifications, new sidewalk, and light pole removal was also included in the project. DKS is also providing construction assistance and signal timing plans for the peak hours for both traffic signals.

Hesperian, Skywest, and Longwood Signal Design
DKS provided traffic engineering services to the City of Hayward for the design of a traffic signal along Hesperian Boulevard. DKS performed the design in accordance with City of Hayward design standards and specifications, and worked directly with City staff. The design was unique in that the signal accommodated five approach legs (the main cross-street had a frontage road running parallel to it), and the two minor approach legs were slightly offset. The signal included programmed visibility signal heads, emergency vehicle preemption, and incorporated both inductive loops and video for detection. DKS also developed and assisted with the implementation of coordinated signal timing for the new signal.