Level of Service (LOS)
Planning for Congestion Relief
The third and final installment of Planetizen's examination of the role of the planning profession in both perpetuating and solving traffic congestion.
Day One of the National Planning Conference—Reunions, Pandemic Planning, Equity, and VMT
The American Planning Association gathers for its first in-person National Planning Conference since 2019. Planetizen is in attendance, and here is some of what we saw on the first day of the conference.
What Is LOS?
Level of Service (LOS) defines how well vehicle traffic flows along a street or road. LOS is one of the most influential metrics in planning, with critical relevance for both land use and transportation planning.
How Planning Fails to Solve Congestion
Solutions for congestion are never as simple and easy as armchair planners and engineers would like you to believe—especially those who suggest that congestion can be solved by forever building more roadway capacity.
Planning and the Complicated Causes and Effects of Congestion
What do planners know about congestion, and what can they do about it? Explanations and solutions are less obvious than they seem (part one of a three-part series).
What Is VMT?
A measure of the demand for vehicle travel on public roadways, VMT provides a metric for evaluating the potential impact of road projects and developments and could become an increasingly useful tool for assessing road usage taxes.
Outdated State and Federal Road Design Rules Hinder Freeway Removal
Although some cities are in favor of removing or reducing urban freeways in favor of more walkable spaces, guidelines like the 11-year-old MUTCD still encourage a 'throughput at all costs' mentality.
A Critical Evaluation of the Urban Mobility Report
The Urban Mobility Report (UMR) evaluates traffic congestion problems and recommends congestion reduction solutions. How well does it reflect travelers' priorities?
Level of Service Canceled in Los Angeles
The Los Angeles City Council voted to officially end the use of Level of Service in measuring environmental impact in favor of a more people-friendly measure: vehicle miles traveled.
*Video: Explaining Vehicle Miles Traveled (VMT)
Conventional planning evaluates transport system performance car-centric indicators such as roadway Level-of-Service (LOS). Many jurisdictions are shifting to Vehicle Miles Traveled (VMT), which supports multimodal planning and Smart Growth policies.
Level of Service Reform Bill Approved by Seattle City Council
A major change to planning paradigms in the city of Seattle.
Level of Service Reform Takes Step Forward in Seattle
The city of Seattle is making more room for alternative transportation modes in its level of service calculations.
The Final Days of 'Level of Service' in California's Environmental Review Process
A long-awaited draft update of the California Environmental Quality Act (CEQA) has finally been released, and Level of Service will finally be a thing of the past in the next two to four years.
California Environmental Law Continues to Frustrate Bike Planning (for Now)
Help is on the way. The law that requires the governor's planning office to devise an alternative method for measuring vehicle traffic for environmental compliance will also take up where an earlier law that exempted bike lanes from CEQA left off.
San Francisco Leading CEQA Reform Process—Scraps Level of Service
The San Francisco Planning Commission took historic action earlier this month, voting to end the use of Level of Service in environmental review.
Pasadena Ditches 'Level of Service' Review for Multi-Modal Measurements
Pasadena got out in front of the state of California this week by replacing "level of service" with a more holistic, less car-centric, set of standards for review under the California Environmental Quality Act.
Reform Transport Engineering: Expand Beyond Just Roadway Level of Service (LOS) Ratings
Transportation engineers currently evaluate urban transport system performance using roadway level of service (LOS) ratings. Here are six good reasons to change.
Town of Palm Beach
Texas A&M AgriLife Extension
York County Government
HUD's Office of Policy Development and Research
HUD's Office of Policy Development and Research
Harvard GSD Executive Education
City of Fitchburg, WI
City of Culver City
Sonoma County Transportation Authority
Urban Design for Planners 1: Software Tools
This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.
Planning for Universal Design
Learn the tools for implementing Universal Design in planning regulations.
