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12.0 Glossary

Specific Plan: A legal tool authorized by Section 65450 et seq. of the California Government
Code for the systematic implementation of the general plan for a defined portion of a
community’s planning area. A specific plan must specify in detail the land uses, public and
private facilities needed to support the land uses, phasing of development, standards for the
conservation, development, and use of natural resources, and a program of implementation
measures, including financing measures. The Office of Planning and Research’s The Planners
Guide to Specific Plans provides direction and references to planning practitioners for the
development of specific plans.

Speech interference: The capacity for noise to prevent intelligible oral communication.

Speed: a rate of motion; experienced by travelers regardless of mode.

Sphere of Influence: A plan for the probable physical boundaries and service area for a local
agency, as determined by the Local Agency Formation Commission. Typically, a sphere of
influence is the territory that a city or district is expected to annex. Therefore, spheres of
influence are usually larger in area than the actual boundaries of a city or district, although
they can be the same as the city or district boundaries.

Spillover: Spillover occurs when light goes over its intended range (eSchoolToday 2017).

Spread: A spread is a sudden lateral movement of a cohesive rock or soil mass along softer
underlying material generally composed of homogenous clays or cohesionless fill. Spread
includes a general subsidence of fractures of the mass of cohesive material into the softer
underlying material. This type of landslide is often triggered by seismic activity.

Stabilization fill: Placement of compacted earthen material along a slope face to mitigate
surficial slope failures, such as ravelling, erosion, and/or rockfalls.

Stacking: The process of vehicles forming a line or queue. If the stacking extends into the
through-lanes, delays and unsafe conditions become prevalent.

Standard Urban Stormwater Mitigation Plan (SUSMP): A document which identifies
practicable policies to ensure to the maximum extent practicable that development does not
increase pollutant loads from a project site and considers urban runoff flow rates, velocities
and durations. The SUSMP addresses only land development and capital improvement
projects and is focused on project design requirements and related post-construction
requirements, not on the construction process itself.

State Agency: State agency means a governmental agency in the executive branch of the
State Government or an entity which operates under the direction and control of an agency
in the executive branch of State Government and is funded primarily by the State Treasury
(State CEQA Guidelines, Section 15383).

State Historic Preservation Officer (SHPO): Official appointed or designated, pursuant to
the National Historic Preservation Act, to administer a State's historic preservation program.

R:\Projects\PAS\CEN\000306\Draft EIR\12.0_Glossary-051017.docx 12-75 Centennial Project
Draft EIR