Draft Environmental Impact Report - California Off Highway Vehicle ...

3.1 Transportation and Traffic
General Plan Impact Analysis
Existing Plus Project Scenario
This subsection includes an analysis of projected traffic operations following implementation of
the General Plan, including construction and operation of the headquarters facilities, without the
estimated 2% population growth, which would occur with or without implementation of the
General Plan. This scenario is theoretical because actual conditions are expected to include a 2%
population growth and a resulting increase in visitors to Clay Pit SVRA. This scenario is used for
analysis purposes to consider traffic impacts related only to SVRA improvements envisioned in
the General Plan. These projected traffic conditions are analyzed relative to existing background
traffic within the study area. Figures 3.1‐6 and 3.1‐7 display these Existing Plus Project traffic
volumes.
IMPACT
3.1-1
Increases to Peak-Hour and Daily Traffic Volumes under Existing Plus Project Conditions
Tables 3.1‐9 and 3.1‐10 present the projected intersection and roadway LOS under Existing Plus
Project conditions. Traffic generated by implementing the General Plan is projected to have a very
minor effect on operations at the study intersections and roadways during either the weekday or
Saturday peak hours. Satisfactory LOS C or better operations are projected to continue at each of
the study intersections and roadways. The stop‐sign controlled intersections in the study area are
projected to continue to operate satisfactorily, and adding traffic signals to the intersections is not
projected to be warranted.
Because projected intersection and roadway LOS remain below specified LOS thresholds,
projected traffic impacts on study area intersections and roadway segments would be less than
significant.
Mitigation Measures: No mitigation is required.
IMPACT
3.1-2
Increases to Peak-Hour and Daily Traffic Volumes during Special Events
Special events are anticipated at Clay Pit SVRA following implementation of the General Plan and
may include events such as motocross or ATV races and four‐wheel‐drive vehicle competitions.
Observations of other similar SVRAs with existing developed OHV facilities were used to quantify
the number of visitors estimated at special events at Clay Pit SVRA (General Plan Appendix C).
These estimates indicate that vehicular volumes would be similar in magnitude to those on a
typical peak Saturday (Table 3.1‐6), as analyzed in this section. Therefore, further quantitative
analysis of special event traffic at Clay Pit SVRA has not been conducted.
Clay Pit State Vehicular Recreation Area
February 2012 3.1-18 Draft EIR