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

4.0 Cumulative Analysis
display the projected 2030 traffic volumes with and without traffic associated with implementing
the Clay Pit SVRA General Plan.
Projected intersection and roadway LOS are presented in Tables 4‐4 and 4‐5. Under Year 2030
“No Project” Conditions, satisfactory intersection operations are projected at all study locations
with the exception of the SR 162/Larkin Road intersection (Table 4‐4). Unsatisfactory LOS F
delays are projected at the southbound approach during the weekday p.m. peak hour and
forecasted intersection volumes are projected to warrant traffic signals at the intersection. These
projections are consistent with the improvement needs identified in the City of Oroville
Circulation Element. Implementing those improvements are projected to provide satisfactory LOS
C intersection operations.
As identified for near‐term conditions, traffic generated by implementing the Clay Pit SVRA
General Plan is projected to have a minor effect on operations at each of the study intersections
during either the weekday or Saturday peak hours under year 2030 traffic conditions. Satisfactory
LOS D or better operations are projected to continue at all locations with the exception of the
southbound approach at the SR 162/Larkin Road intersection, as discussed above. Project‐
generated traffic would not significantly contribute to delays at this intersection and
improvements identified for the Year 2030 “No Project” Condition would also result in satisfactory
LOS C operations with implementation of the General Plan.
Under Year 2030 “No Project” Conditions, satisfactory roadway operations are projected on all
study segments with the exception of SR 162 east of Larkin Road (Table 4‐5). Forecasted volumes
on this highway segment are projected to be at the LOS D–E threshold. Widening of the highway to
provide four lanes is projected to be required and would provide satisfactory LOS C operation.
These projections are consistent with improvement needs as identified in the Butte County and
City of Oroville general plans’ Circulation Elements and Caltrans’s TCR for SR 162.
Traffic generated from implementation of the Clay Pit SVRA General Plan is projected to have no
measurable effect on study area roadway operations under 2030 conditions. Roadway volume‐to‐
capacity ratios would remain unchanged with the addition of project‐generated traffic to each of
the roadway segments (Table 4‐5). Improvements to SR 162 as identified for the Year 2030 “No
Project” condition would also provide satisfactory operating LOS with implementation of the
General Plan.
In summary, with increased visitation to Clay Pit SVRA, traffic using the nearby roadways that
provide access to the site, and traffic using the regional transportation corridors would increase,
as described in Section 3.1, ”Transportation and Traffic,” of this DEIR. However, as discussed
above, the local roadways would have ample capacity in the year 2030 to accommodate additional
traffic volume before exceeding acceptable LOS C conditions. Therefore, no significant cumulative
impacts on roadway capacity are projected near the project. In addition, because the SVRA would
be visited mostly on weekends, the increase in weekend traffic would not add significantly to the
Clay Pit State Vehicular Recreation Area
Draft EIR 4-9 February 2012