TPG's Engineering Division is experienced in road design, traffic signal design, traffic control/handling/staging, general street improvements (signing, striping and pavement markings), site development, stom water drainage design and analysis, sewer and water distribution systems, construction management, warrant studies, radar speed studies, right-of-way requirements and estimating. Expertise in this division includes:
- Street and Pavement Design
- Traffic Signal & Interconnect Design
- Signing, Striping & Pavement Marking Design
- Site Development Plans
- Concept Plans
- Long Range Planning
- Street
and Pavement Design
- Bikeway Plans
- Federal Funding Assistance
- Project Reports
- Project Study Reports
- Pre-programming Reports
- Major Investment Studies
- Roadway
Animations
The company has a long history of providing successful projects for various private developments and public agencies throughout California. One of the most important qualities offered by TPG Consulting is an excellent working relationship with the numerous local public agencies and the California Department of Transportation (Caltrans). The following provides a sample of some of the various traffic engineering projects we have completed in the past several years.
DESIGN/SITE IMPROVEMENTS
Our staff brings together a multitude of disciplines in design ranging from local traffic signals to state route interchanges. TPG Consulting has actively participated in the design of over 100 road and traffic signals with site improvements for several agencies throughout the state. Examples of our work include:
INTERCHANGES
TPG Consulting has solid experience in designing on- and off-ramps for interchanges. Examples include:
- State
Highway 99 Off-Ramp at Floral, Traffic Signal Design
TPG Consulting provided the traffic signal design and striping and pavement marking plans for a new traffic signal, as well as the basic layout of a modified off-ramp in Selma. The project was part of off-site improvements being installed as part of the construction of a Wal-Mart store. The design services included preparation of the traffic signal design, coordination with Caltrans and the City of Selma and the review of the design during construction.
RED LIGHT TECHNOLOGY
According to the Federal Highway Administration (FHA), intersection safety is a serious problem in the United States: In 2004, crashes caused by red light running resulted in 854 deaths and more than 168,000 injuries. Traditional police efforts to enforce this violation are costly and dangerous. Red light cameras supplement police efforts, photographing violators resulting in a citation mailed to the driver. Ideally, this technology serves as a deterrent to the number of red light running incidents, therefore reducing the number of fatalities and injuries. TPG has extensive experience in the implementation of video based red light enforcement systems.
TPG has performed the same type of red light enforcement technology implementation for Nestor Traffic Systems on more than 40 intersections in cities such as Fresno, San Bernardino, Irvine, Long Beach, Costa Mesa and Fullerton, California, as well as Dover, Delaware.
TPG has implemented this technology on more than 40 intersections in numerous California cities in the Los Angeles area, as well as in Dover, Delaware. Examples include:
TRAFFIC SIGNAL SYNCHRONIZATION
TPG has designed traffic signal coordination systems for several public entities. TPG collects field data and conducts speed studies, then uses this data to optimize signal timing and synchronize the traffic signals in the project area. Synchronizing traffic signals along a stretch of road results in a decrease in vehicle delay, which in turn decreases overall emissions. Examples of this work include:
LAND DEVELOPMENT, HYDROLOGY & WATER RESOURCES
TPG staff has over 30 years of experience in land development and drainage improvement systems. That experience includes managing several planned unit developments and subdivision projects, as well as overseeing site grading, drainage, FEMA processing, storm-water management plans along the front range, NPDES processing and water distribution model projects.
Our staff, with a strong mix of technical and business skills, provides a project approach which brings land development solutions, enabling the transformation of a parcel of land into a viable development. A good measure of our client satisfaction is based on our proven ability to assist them through all phases of their land development project, including planning, design, construction, maintenance and commissioning, with emphasis on value engineering along every step of the process. Examples of recent work include:
- Shop Layout Plan, Kawneer Company, Inc. - Visalia, CA
TPG prepared the site improvement plans associated with the proposed equipment storage pad located in Visalia. Improvement plans included a topographical survey for site plan, edge of rigid pavement slab grades, dimensioned storage facility locations, pavement markings and storm drainage and appurtenances.
- Tollgate Crossing Subdivision, D. R. Horton - Aurora, CO
This project included a 2,000 dwelling unit subdivision with all relevant amenities and infrastructure. The development incorporated the approval of the framework development plan, contextual site plans, and construction drawings. TPG staff provided master service plans, feasibility studies, storm-water management plans, infrastructure design, utility design and coordination and earthwork analyses. In addition, TPG staff provided hydrology and hydraulic calculation incorporated into LOMR and CLOMR applications for the processing of FEMA floodplain encroachments.
- Rock Creek Ranch, Richmond American Homes - Superior, CO
This multi-use project included provisions for both on-site and off-site hydrology, which once established, was subsequently incorporated into hydraulic conveyance elements which were routed through the development process. Also included was NPDES permitting and water surface profiles based on proposed improvements. The design was coordinated with other infrastructure and ultimately approved by the city and local drainage district. The conveyances provided for several roadway crossings as well major irrigation ditch crossings.
- Whispering Meadows, Pulte Homes - Broomfield, CO
Under a contract with Pulte Homes, design services were provided for urban design of a multifamily apartment complex. The project included master planning, water supply and distribution, sanitary sewage collection & outfall, drainage report & coordination with drainage facilities design, heritage resources, quantity takeoff, cost estimating & cost control, schedule review & processing, and project closeout.
PROJECT STUDY REPORTS
TPG has provided Project Study Reports (PSR's) for several public agencies. These entail doing extensive studies on roadways to determine feasible solutions for improvements, along with cost estimates to accomplish those goals. Examples include:
- Tulare County
- Widening of Road 80
TPG Consulting was responsible for the preparation of the Road 80 PSR for the County of Tulare. The project incorporated the realignment and widening of Road 80 from a two-lane to a four-lane divided facility at an estimated cost of $50 million. Two alternatives were included in the report to address economic and social issues along sensitive portions of the roadway. The intersection at Avenue 384 was also redesigned to accommodate a higher design speed while preserving existing structures. The PSR included a detailed traffic analysis utilizing existing and projected traffic volumes to determine intersection control, lane configurations and turn channel lengths.
- Tulare
County - Widening of Road 108
TPG Consulting prepared the Road 108 PSR for the County of Tulare. The project incorporated the realignment and widening of Road 108 from a two-lane to a four-lane divided facility at an estimated cost of approximately $11 million. The PSR included a detailed traffic analysis utilizing existing and projected traffic volumes to determine intersection control, lane configurations and turn channel lengths. Additionally, TPG Consulting was responsible for addressing environmental issues including possible hazardous waste sites, and working within restrictive right of way limitations due to existing structures and a Southern California Edison sub-station. Two alternatives were included in the report to address an economically sensitive area.
- City
of Tulare - Modification of the Prosperity Interchange
TPG Consulting prepared the Prosperity PSR for the City of Tulare. The project incorporated the upgrade of the four existing ramps at the interchange and the addition of a northbound loop on-ramp south of Prosperity Avenue. The alternatives evaluated had an estimated cost of between $3 million and $9 million. Three alternatives were included in the report to address the current conditions of State Route 99 and the proposed widening of the freeway. The PSR included an operational analysis of the interchange for existing and projected traffic volumes. The resulting information was utilized in determining ramp configurations, intersection control, lane configuration and turn channel lengths. TPG Consulting was also responsible for addressing environmental issues that included possible hazardous waste sites. Design alternatives were formulated working within prescribed right of way limitations.
PROJECT DEVELOPMENT FUNDING
TPG Consulting has a wealth of experience in securing government project development funding for both public and private projects. These funds assist agencies in the planning and construction of their projects. Some examples include:
- Three Rivers Historical
Society - Visitors Center
TPG secured federal and local matching funds for the Three Rivers Historical Society, allowing their vision for a Visitors Center to be realized. Funds helped pay for property acquisition, and construction of a pool, rest stop and interpretive center.
- City
of Tulare - Rails to Trails Project
TPG Consulting assisted the City of Tulare with their "Rails to Trails" construction project, a 4.5 mile pedestrian/bicycle/equestrian trail. TPG prepared the NEPA documents, as well as the CMAQ and REMOVE grant allocation requests. TPG also prepared a "Request for Proposal" for the city to obtain design services for this project.
- City
of Tulare - Cross Avenue, West and Tulare Avenue Street Reconstruction
TPG prepared plans for road construction, traffic signal, striping and pavement marking for two new traffic signals, and approximately one mile of street reconstruction and two miles of street asphalt overlay for the City of Tulare. TPG secured CMAQ funds for the traffic signal portion of the project. Administrative assistance was also provided to satisfy the new re-engineering requirements through Caltrans.
- City
of Tulare - Prosperity Avenue Improvements
TPG supplied a full range of services for the improvement of Prosperity Avenue between Blackstone and Brentwood for the City of Tulare. TPG provided preliminary engineering and environmental services for the initial portions of the project. This included programming of federal FAU funding for the project and preparation of the negative declaration. Our firm also provided design services for the intersection expansion, traffic signal system, striping and pavement marking plans and coordination with adjacent development improvements. During the bid process, TPG Consulting provided assistance to the city and coordination with Caltrans for certification through the federal program. Construction engineering and construction management services were also furnished to the City during the construction phase of the project. This work included daily on-site inspection, preparation and submission of federal construction reports, and processing of contract documents.
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ROADWAY ANIMATION
TPG has provided several three-dimensional computer animations for private clients. This work entails a three-dimensional construction of the roadway, graphic representation of surrounding buildings and landscaping, and "drive-through" animations of the projects. Click on the animation at right for sample animation.