Traffic Impact Studies / Environmental Impact Reports (EIR)
Traffic impact studies employ the most current trip generation forecasting techniques. Studies include evaluation of existing operations/conditions, forecasts of future operating conditions both without and with the project, and identification of areas of deficiency based on established criteria. Studies also include an assessment/review of potential cut-through or diverted traffic in adjacent neighborhoods. LLG develops mitigation measures and comprehensive improvement packages with the goal of reducing identified impacts to less than significant levels, along with conceptual plans that illustrate feasibility of an improvement. Our studies support environmental review documents including Initial Studies (IS), Negative Declarations (ND), Mitigated Negative Declarations (MNDs) as well as all types of Environmental Impact Reports (EIRs).
LLG offers expert analysis in:
- Traffic Assessments
- Studies for Environmental Review
- Freeway and Ramp Meter Impact Analyses
- Construction Analysis
- Trip Generation Forecasts
- Street Segment Impact Analyses
- Neighborhood Traffic Impact Studies
- Congestion Management Program (CMP) Analyses
LLG prepared a Traffic Impact Analysis Report for the Anaheim Regional Transportation Intermodal Center (ARTIC) on their proposal to replace and enlarge the existing Anaheim Metrolink/Amtrak station – which includes the 13.58-acre Orange County Transportation Authority (OCTA) parcel and an adjacent 2.2-acre parcel owned by the City of Anaheim. LLG evaluated the project’s potential near and long-term traffic impacts for 19 key intersections and eight key roadway links. LLG conducted traffic signal warrant analysis and provided recommendations to improve site access and internal circulation. Our team worked closely with Anaheim City staff to prepare the report, which led to the project’s approval.
City of Industry, CA
LLG prepared a Traffic Impact Analysis Report for the Industry Business Center’s EIR, which analyzed a potential 75,000-seat National Football League stadium, 380,000 square feet (sqft) of stadium-related uses (team administrative offices, NFL Hall of Fame, retail/team store, etc.), four practice fields and non-stadium use space including 833,000 sqft of retail, 162,000 sqft for restaurants, a 5,000-seat live theater, 1,200-seat movie theater and 1,490,000 sqft of general office space. The study evaluated the proposal’s potential traffic impacts at 89 key intersections, 22 roadway segments and five mainline freeway segments. LLG evaluated multimodal aspects of the project’s trip-making potential and traffic patterns in extensive detail, including transit ridership forecasting, charter bus and shuttle trips in addition to passenger cars.
San Diego, CA
LLG completed a traffic study for the Union Tribune (UT) Master Plan in the Mission Valley community in the City of San Diego. The project consists of a Transit Oriented and Smart Growth Development at the existing UT site on Camino De La Reina. The project included 200 multi-family residential units and 3,000 SF of site-serving retail. LLG conducted an extensive traffic study that included transportation planning analyses, shared parking analyses, an analysis & vehicle miles traveled (VMT), a transportation demand management (TDM) plan, among others. The project was successfully approved by the City of San Diego Planning Commission in June 2015.
San Diego, CA
The project included a hotel, a residential component and an increase in full-time equivalent (FTE) student enrollment up to 35,000 students. The project was calculated to generate about 11,000 ADTs. Numerous intersections and street segments in the project area were analyzed for the existing, existing + cumulative and existing + cumulative + project scenarios. In addition, a Year 2030 with and without project analysis was completed. The analysis included an assessment of freeways and ramp meters. Significant impacts were determined and mitigation was recommended.
Linscott, Law & Greenspan Engineers (LLG) prepared a traffic impact study for the Villages of La Costa project in the City of Carlsbad. The project proposed over 2,500 dwelling units. Both the Zone 10 (1,400 dwelling units) and Zone 11 (1,800 dwelling units) plans within the City of Carlsbad were also updated. LLG worked closely with SANDAG and the City to update the horizon year traffic model. Important considerations included the alignment of Rancho Santa Fe Road, Melrose Drive and Questhaven Road as well as the determination of the proper access for the project. Over twenty intersections and fifty street segments were analyzed in the Traffic Study.
City of Glendale, CA
The 15.5-acre, 900,000 square-foot Americana at Brand Mixed-Use project is located in downtown Glendale (formerly known as the Glendale Town Center project). Under the direction of the City of Glendale Redevelopment Agency and Planning Department, LLG oversaw the preparation of the traffic and parking analyses in support of the EIR entitlement process. The traffic analysis reviewed existing and future operations at over 30 locations. The firm was integral in providing support throughout the challenging environmental review process, including litigation support and preparation of hundreds of responses to comments in support of the Final EIR. Community meeting and public hearing representation was also provided and the EIR was ultimately certified.
LLG provided consultation with the project team and project architect regarding overall access, internal circulation, and design of the Kaiser Permanente Antelope Valley Medical Center Master Plan project. The project upon build-out will consist of a 400,000 square-foot hospital with up to 200 beds, a 30,000 square-foot central utility plant, and up to 256,000 square feet of medical office space to be constructed in three phases within the 44-acre southeast portion of the Amargosa Creek Specific Plan (ACSP) area. LLG provided site planning consultation including review and modification of ACSP cross-sections for the surrounding roadways of the medical campus site, and determination of overall parking and ADA parking requirements. LLG also prepared analyses of bus, emergency vehicle and truck maneuvering within the campus using the AutoTURN software package. LLG provided representation in public meetings throughout the approval process.