G.6_ SB743 TIA PresentationPlanning Commission
Agenda Item G.6 -Presentation
Update to Vehicles Miles Traveled (VMT)
Traffic Impact Analysis Guidelines
City Council Meeting
August 24, 2021
VMT Resolution
On July 14, 2020, the City Council Adopted
Resolution 2020-26, “Vehicle Miles Traveled
Thresholds for Analysis of Traffic Impacts Under
the California Environmental Quality Act.” The
Planning and Development Services Department
monitors statewide implementation and updates
the Traffic Impact Analysis (TIA) Guidelines with
close coordination with SBCTA
Technical Feedback
As the City embarks on several significant
projects the VMT analyses is based on technical
feedback from local agencies and SBCTA. These
jurisdictions, similar to Grand Terrace staff are
refining Trip Generation consistent with our
adopted resolution to account for internal trip
capture
Local Serving
Local serving retail projects less than 50,000 square feet
may be presumed to have a less than significant impact
absent substantial evidence to the contrary. Local
serving retail generally improves the convenience of
shopping close to home and has the effect of reducing
vehicle travel. In addition to local serving retail, there
are, at the discretion of the City, be presumed to have a
less than significant impact as their uses are local
serving
VMT Threshold of Significance
This threshold ties directly to the Office of
Planning Research (OPR) technical Advisory
Memorandum which is contained in Grand
Terrace’s VMT resolution. By adding retail
opportunities into the urban fabric and thereby
improving retail destination proximity, local-
serving retail development tends to shorten trips
and reduce VMT
Project Specific Information
Grand Terrace presumes such development creates a
less-than-significant transportation impact. Many cities
and counties define local-serving and regional-serving
retail in their zoning codes. Lead agencies may refer to
those local definitions when available, but should also
consider any project-specific information, such as
market studies or economic impacts analyses that might
bear on customers’ travel behavior
Behavior
Because Grand Terrace best understands our travel
behaviors of future project users, we are in the best
position to decide when a project will likely be local
serving. Retail development including stores larger than
50,000 square feet might be considered regional-
serving, and so Grand Terrace should undertake an
analysis to determine whether the project might
increase or decrease VMT
Threshold of Significance
•Per the San Bernardino County travel model, Grand
Terrace currently has a lower average VMT for
residents and employees than the entire County
•Residents and employees do not drive as far for
commuting, shopping, and other services on average
as the County
•Grand Terrace must balance their local goals of growth
and congestion management with the need to reduce
VMT
Traffic Impact Analysis Guidelines
Staff has included refined retail opportunities consistent
with State adopted project threshold direction and has
been included as Footnote 4 on Page 23 of Attachment
2 (TIC Guidelines). Comparing back to the county
average encourages development in this VMT-efficient
location and further supports the legislative intent of SB
743. City staff has determined that this aligns with the
local goals, vision, and values of the City of Grand
Terrace as the adopted threshold will result in less than
significant transportation impacts
Determination
This threshold is consistent with how other
resource areas are currently evaluated under
CEQA. City staff has determined that this most
closely aligns with the local goals, vision, and
values of the City of Grand Terrace.
Planning Commission
Agenda Item G.6 -Presentation
Update to Vehicles Miles Traveled (VMT)
Traffic Impact Analysis Guidelines
City Council Meeting
August 24, 2021
2030 Vision Goal Statement Goal #4
Calculating VMT
Methodologies
•Project-generated VMT
•Productions/Attractions
•Origin/Destination
•Project effect on VMT
•Boundary Method
VMT Threshold Options
Including LOS
Although VMT must be used to evaluate CEQA impacts, the
City can still choose to study LOS as part of a traffic study.
•Most jurisdictions are choosing to retain LOS in their
guidelines.
•“Impacts” and “mitigations” are CEQA terms: LOS
“deficiencies” and “improvements” can no longer be part
of the CEQA process.
•Any identified improvements to address LOS deficiencies
can be conditioned on new development by the City.
What’s Feasible?
Project
Specific
o Physical Design
o TDM
Programs
o Impact Fees
o VMT Exchanges
o VMT Banks
VMT Mitigation Strategies
Near-Term Longer-Term
VMT Exchange Program
DEVELOPER
LEAD AGENCY/
DEVELOPER
EXCHANGE OPERATOR
(SCAG OR OTHER)
Creates list of VMT
Reduction Projects
Implements VMT
Reduction Projects
as Mitigation
MeasureVerifies ‘Additionality’
and Monitors VMT
Performance
Developer selects
VMT reduction from
an approved list and
then funds a specific
project or program
VMT Bank Program
BANK OPERATOR
(SCAG OR OTHER)
IMPLEMENTATION
AGENCY/ENTITY
Bank Operator…
Develops Bank payment/credit process
Develops VMT reduction projects
Verifies VMT reduction amount
Tests for Additionality
Monitors VMT performance and adjusts overtime
DEVELOPE
R
Developer purchases
VMT reduction credits
from Bank Operator
and implementation
is left to others
Transportation Demand Management:
VMT Mitigation Strategies
To reduce VMT, new development
will need to explore ways for fewer
people to travel alone in their cars.
Transportation Demand
Management (TDM) strategies can
be used to reduce VMT.
Building Operations
Site Design
Location Efficiency
Regional Policies
Regional Infrastructure
Transportation Related VMT
Reduction Measures
•Encourage Telecommuting and Alternative Work Schedules•Increase Diversity of Land Uses•Provide Pedestrian Network Improvements•Provide Traffic Calming Measures and•Low-Stress Bicycle Network Improvements•Implement Car-Sharing and Ride-Sharing Programs•Increase Transit Accessibility•Commute Trip Reduction Programs•Parking Management
Transportation Demand Management:
VMT Mitigation Strategies
Traffic Study Procedure
•Projects now study VMT
•Screening criteria to determine if VMT analysis is needed
•Transit Priority Areas (1/2 mile from high-quality transit –none
currently in Grand Terrace)
•Low VMT Zones (efficient travel areas)
•Small projects
•Local-serving projects
•Many projects will not require VMT analysis
•City has discretion as long as it is supported by substantial
evidence
Threshold of Significance
•Projects that require VMT analysis will use the
threshold of significance recommended by City Staff:
•County of San Bernardino Better than Existing VMT
•“Existing” is based on the year the EIR Notice of Preparation is
released, will be different project by project
•Appropriate for projects in Grand Terrace –threshold combined with
screening criteria will facilitate land use growth
Traffic Study Procedure
SB 743 Recap
Improving Communities
QUESTION/COMMENTS
Traffic Study Procedure
•Projects which are not screened will require a full
VMT analysis:
•Calculate Project VMT
•Compare back to threshold of significance
•If the Project has Significant Impacts
•Modify the project to reduce VMT
•Introduce TDM measures
•Significant and Unavoidable Impact with Overriding Considerations
SB 743 Recap
•CEQA analysis must now use VMT (trips x trip length)
•https://www.youtube.com/watch?v=UE4TJItVdJ8
•Grand Terrace participated in SBCTA implementation
study