Content that references this location

Implementation of demand-based pricing parking management to San Francisco on-street and off-street parking resulted in a 43 percent decrease in time searching for a parking space and a 30 percent decline in greenhouse gas emissions.

METHODOLOGY This pilot involved demand-based parking pricing to on-street and off-street spaces in the pilot area. Hourly rates were adjusted based on the occupancy rate of the parking area. The…
Content type
Date Posted
01/25/2024

Evaluation of San Francisco Bay Area Rapid Transit’s Carpooling App Revealed that 88 Percent of Scoop Trips Either Reduced or Caused no Change in Vehicle Miles Traveled.

METHODOLOGY This study considered 13 hypotheses (e.g., carpooling to stations increases) for the purpose of evaluating the BART Carpool to Transit Access Program pilot project facilitated through a…
Content type
Date Posted
09/29/2023

An Agent-Based Simulation Model of Automated Vehicles in San Francisco Estimated That Shared-Ride Home Pick-Up Services Would Result in a Cost Savings Benefit for 33 Percent of Trips With Human Drivers and 73 Percent of Trips With Fully Automated Vehicles

METHODOLOGY Six simulation scenarios were considered, assuming 100 percent market penetration of personal AV in the same horizon year as the base case scenario for the MTC-ABM: (i) Doubled highway…
Content type
Date Posted
09/29/2023

Simulation Study Assessing the Impacts of Automated Vehicles on Parking Demand in San Francisco’s City Center Saw a 72 Percent Reduction in CO2 Emissions Compared to a No-Automated Vehicles Scenario.

METHODOLOGY An open-source microscopic traffic simulation software was used to model the study area. The simulation model used the local travel activity data from the San Francisco Bay Area’s…
Content type
Date Posted
08/28/2023

Simulation Study Implementing Transit Signal Priority on a Major Transit Corridor with Two Transit Lines on a Bus Only Lane in San Francisco Reduced Total Travel Time up to Nine Percent and Control Delay by 20 Percent.

METHODOLOGY The following three strategies were tested:  Strategy 1, Arterial timing optimization without private vehicles; Strategy 2 - Transit signal priority (TSP) at signalized…
Content type
Date Posted
06/28/2023
Taxonomy (ARC-IT) Transit Signal Priority (PT09)

Model Predicts Electric, Fully-Automated Taxis in San Francisco Can Reduce Net Energy Consumption and Emissions by 54.39 Percent and 33.07 Percent, Respectively.

METHODOLOGY This study considered a hypothetical vehicle as the AT; a mid-sized, electric automobile. A two-staged model was developed to first quantify and compare the financial proposition of…
Content type
Date Posted
03/22/2023

Simulation Analysis of Connected Vehicle Signalized Left Turn Assist Technology Shows Up to a 58.4 Percent Reduction in Left Turn Delays and Reduced Crossing Conflicts.

Methodology Researchers used modeling techniques to assess the potential benefits of SLTA. To calibrate a simulation model, researchers utilized video data collected from five intersections in the…
Content type
Date Posted
08/24/2022

Travel Demand Model of Automated Vehicles on a California Highway Network Predicts Nearly 74 Percent Annual CO2 Reductions Per Capita.

METHODOLOGY Integrated Transport and Health Impacts Model (ITHIM), developed in 2010, is an open‐source tool that incorporates the peer‐reviewed science with a web‐accessible engine capable of…
Content type
Date Posted
03/21/2022

San Francisco Transit-Only Lane Enforcement Program Appears to Change Motorist Behavior and Reduce the Frequency of Repeat Offenders with Only a One Percent Repeat Vehicle Citation Comparing 2013 to 2014.

With the Transit-Only Lane Enforcement (TOLE) program in place, San Francisco has been able to change motorist behavior and reduce the frequency of repeat offenders obstructing transit-only lanes.…
Content type
Date Posted
12/17/2020

San Francisco Transit-Only Lane Enforcement Program Reduced Delays to Transit Vehicles by 3 to 20 percent.

The Transit-Only Lane Enforcement (TOLE) program showed promising results reducing major delays to transit vehicles along TOLE corridors. The 38L-Geary achieved a 3 percent daily and 7 percent…
Content type
Date Posted
12/01/2020

More transit use, more walking, higher satisfaction: Early results from the Mobility on Demand (MOD) Sandbox pilot projects.

FINDINGS The following results were reported for FY2019: San Francisco Bay Area Rapid Transit (BART), San Francisco, California BART received funding to pilot an integrated carpool-to-public-…
Content type
Date Posted
03/30/2020

Simulation of ride sharing schemes finds benefits may be limited.

Findings In the urban scenario, ride sharing was able to reduce vehicle miles traveled (VMT) by 11 percent and the fleet size by 29 percent at the cost of a 15 percent increase in total travel time…
Content type
Date Posted
10/09/2019

The third truck in a Cooperative Adaptive Cruise Control system has a fuel savings of up to 11 percent.

FINDINGS When the heavy trucks are driven using CACC at the tested time gaps between 0.6 seconds and 1.5 seconds, a three-truck platoon pulling conventional well loaded dry goods van trailers can…
Content type
Date Posted
08/26/2019

Converting compressed natural gas buses to battery-electric buses would result in maintenance and fuel savings of more than $70,000 per year for a fleet of nine medium- and heavy-duty vehicles.

Findings The analysis found that replacing the fleet entirely with BEBs would completely eliminate fleet emissions of carbon monoxide (CO), nitrogen oxide (NOx), and volatile organic compounds (VOC…
Content type
Date Posted
04/16/2019
Taxonomy (ARC-IT) Emissions Monitoring (ST01)

Transportation network company (TNC) usage is associated with decreased vehicle ownership and fewer single occupancy vehicle trips.

The study attempts to broaden the understanding of the interplay among emerging and established modes of transportation by approaching from several angles the question of how shared modes, and…
Content type
Date Posted
09/12/2018

Comparison of ridesharing and public transit trip times finds ridesharing trips travel the same distance, on average, 10 minutes faster and 66 percent of trips would be twice as long by transit versus ridesharing.

Findings Despite many similarities, taxis and ridesharing differ in user characteristics, wait times, and trips served. While ridesharing trips replaced taxi trips, at least half of ridesharing…
Content type
Date Posted
08/29/2018

Models of dynamic parking management systems in San Francisco indicated the distance traveled while circling to find downtown parking can be reduced by 56 to 70 percent.

The model was applied to a test case based off the Marina neighborhood in San Francisco. The network had 20 parking areas including 282 parking spaces on 19 on-street block faces. In this example,…
Content type
Date Posted
08/30/2017

Transit Priority Corridor planned for San Francisco estimates to amass $227.4 million in safety benefits from 2020-2050.

Content references source material no longer available at its original location.
A Benefit-to-Cost-Analysis (BCA) was applied that compared the "build" and "no-build" scenarios. The methodology estimated both costs and benefits for a 30-year period (2020 to 2049) and was…
Content type
Date Posted
07/31/2017

Real-time digital transit information displays at trip planning decision points contributed to a five percent decrease in drive-alone commuters.

Content references source material no longer available at its original location.
TransitScreens can help eliminate a number of common annoyances to travelers, such as arriving at an empty bike-share station or having an unexpected 15 minutes wait at a bus stop or train station.…
Content type
Date Posted
05/23/2017

Incident Management tool implemented in San Francisco Bay area reduced incident durations by approximately 15 percent, with an annual delay savings of 210,000 hours.

Methodology:Data on incidents and their characteristics were collected "before" and "after" the implementation of BAIRS. Pre-BAIRS data was obtained from Caltrans and the California Highway Patrol…
Content type
Date Posted
12/07/2015

San Francisco-based tool makes parking more efficient by decreasing parking spot search time by 43 percent.

MethodologyA SPS pilot program carried out in San Francisco from 2009-2013 set out to improve drivers' parking experience. Sensors installed in the surface of each parking spot communicated with…
Content type
Date Posted
03/31/2015

Transit users and individual operators enjoy most of the benefits of smart cards, while individual transit operators and multiple agencies bear the majority of the deployment costs.

Content references source material no longer available at its original location.
METHODOLOGYIn reviewing these three cases, the authors found that while these public transportation agencies have made their best efforts to estimate smart card costs and benefits, these studies are…
Content type
Date Posted
11/13/2013

Portland's TriMet and San Francisco's Muni transit agencies saved thousands of dollars in development costs and service fees through the use of Open Source Software (OSS).

METHODOLOGYThe research team conducted a literature review and interviewed a total of 63 public and private organizations from across the nation, including transit agencies, State departments of…
Content type
Date Posted
07/12/2013

Audible "slow traffic ahead" alerts can improve drivers' situational awareness and increase safety on freeways.

FINDINGS The presence of an audible alert system enhanced drivers' situational awareness and influenced the smoothness of driving profiles as drivers approached slower moving vehicles or vehicles…
Content type
Date Posted
01/31/2013

Use of archived data for "existing conditions" analysis is more time efficient and cost effective than collecting new data.

Findings The use of archived data is a time efficient and cost-effective use of resources to produce an "existing conditions" analysis when data are available. By eliminating the need for data…
Content type
Date Posted
10/02/2012

Variable Pricing Systems worldwide indicate an increase in transit use and improved travel times and speeds system wide (priced lanes and general purpose lanes).

FINDINGSConversion of HOV lanes to HOT lanesEarly evaluations in San Diego (I-15 FasTrak) and Houston (US-290 and I-10 QuickRide) indicated that HOV to HOT conversions can increase lane use by 21 to…
Content type
Date Posted
11/30/2011

Integrated Corridor Management (ICM) strategies that promote integration among freeways, arterials, and transit systems can help balance traffic flow and enhance corridor performance; simulation models indicate benefit-to-cost ratios for combined str

Outside San Francisco, a transit-based smart parking system contributed to an increase in transit mode share, a decrease in commute time and a reduction in total VMT.

Content references source material no longer available at its original location.
RESULTSThe participant survey found:Sizable increases in transit mode share of 5.5 more transit commutes per month for on-site work commutes.Decreased average commute time an average of 5 percent for…
Content type
Date Posted
09/15/2008

Customer satisfaction with 511 ranged from 68 to 92 percent in four deployments studied.

Notes: See also: Swan, Nicole, et al. 511 Virginia Evaluation, Report sponsored by VDOT, January 2004. Final Report Model Deployment of a Regional, Multi-Modal 511 Traveler Information System,…
Content type
Date Posted
01/19/2007

Deployment experiences document the importance of traveler information and list top sources of traveler information.

In Seattle, the following evaluation data were highlighted: 1) Top Sources of Traveler Information (percent of trips where information was consulted). En-route radio (56 percent). Pre-trip radio…
Content type
Date Posted
01/19/2007

Based on the survey results only 9 percent of households were aware of TravInfo, and less than 1 percent of the Bay area commuters who used traveler information used TravInfo.

METHODS A Traveler Information Center was designed to collect, process, and disseminate information directly to the public through TravInfo, a Travel Advisory Telephone System (TATS) and internet…
Content type
Date Posted
06/05/2001

Automated red light enforcement reduced the number of violations by 42 percent at 5 intersections in San Francisco, California.

Content references source material no longer available at its original location.
RESULTS In the first six months of the program the San Francisco Department of Parking and Traffic (DPT) reported a 42 percent reduction in the number of red light violations at intersections with…
Content type
Date Posted
05/25/2001

Automated enforcement systems reduced red light violations by 20 to 60 percent, decreased right-angle crashes by 30 percent, and reduced crash injuries by 10 percent.

RESULTS New York City, NY: A number of robotic cameras were installed at 18 intersections equipped with pavement loop detectors. The total cost was 15.5 million dollars over a three year period.…
Content type
Date Posted
05/25/2001

Automated enforcement systems have reduced red-light violations by 20 to 60 percent and crashes by 22 to 51 percent.

FINDINGS Red Light Enforcement Systems The automated red-light enforcement system in New York, NY began operation in 1993 with enforcement at 15 intersections; by 1998, 30 intersections were…
Content type
Date Posted
01/04/2001

San Francisco parking meter payment data models accurately predict 70 percent of on-street parking occupancy

Content references source material no longer available at its original location.
Methodology Three models were developed to estimate parking occupancy using meter payment data focused on two metrics: parking occupancy rate and meter payment rate. Occupancy and payment rates…
Content type

Understand Time-Intensive Data Requirements for Valid Carpool Verification and Enforcement at Transit Station Parking Lots.

Understand time-intensive data requirements for valid carpool verification and enforcement. In this pilot, the vendor found it challenging and time-intensive to meet the data requirements for…
Content type
Date Posted
09/29/2023

Study finds Transportation Network Companies (TNCs) accounted for approximately 50 percent of the rise in congestion in San Francisco between 2010 and 2016.

The final report found that Transportation Network Companies (TNCs) accounted for approximately 50 percent of the rise in congestion in San Francisco between 2010 and 2016, as indicated by…
Content type
Date Posted
10/19/2020

Further research, testing, and safety features should be developed to help drivers manage the transition from automated to manual control of a vehicle.

Further research, testing, and safety features should be developed to assist drivers as they transition from automated to manual control of a vehicle. Analysis of automated vehicle crashes in…
Content type
Date Posted
03/25/2020

Researchers recommend better rider safety measures and regulation for electronic scooters (e-scooters) to increase helmet use and reduce injury rates.

Researchers recommended better rider safety measures and regulations, such as increased helmet use to reduce injury rates. E-scooter manufacturers should encourage helmet use by making them more…
Content type
Date Posted
01/14/2020

Automate collection of parking occupancy data when traditional parking surveys lack resolution and sample size to support large-scale demand-responsive parking management systems.

Content references source material no longer available at its original location.
Parking rate adjustment models eventually require recalibration, which requires payment and occupancy data. In San Francisco, payment rate information will continue to be provided by the smart…
Content type
Date Posted
09/26/2017

Recalibrate parking rate adjustment models when changes to parking policies and regulations may affect non-payment behavior.

Content references source material no longer available at its original location.
Recalibrate parking rate adjustment models when changes to parking policies and regulations may affect non-payment behavior. A major assumption that can impact the accuracy of the model is non-…
Content type
Date Posted
09/26/2017

Placing detectors and deploying transit signal priority should be done to maximize benefits for transit vehicles while minimizing delay for other vehicles.

Transit Signal Priority at Two Agencies The San Francisco Municipal Transportation Agency (SFMTA) uses TSP for both light rail and buses at many intersections in the city. TSP systems used in San…
Content type
Date Posted
02/27/2017

Utilize organizational assets and competencies effectively; do not underestimate the need and efforts for building internal consensus and cultural change when implementing a new parking management system.

The SFpark pilot project of the San Francisco Municipal Transportation Agency (SFMTA) uses a demand-based approach to adjusting parking rates at metered parking spaces in the SFpark pilot areas and…
Content type
Date Posted
01/31/2013

Conduct extensive outreach, be transparent about goals, policies, and methods of installing an advanced parking management system, and communicate clearly how the revenue from a new parking management system will be used.

The SFpark pilot project of the San Francisco Municipal Transportation Agency (SFMTA) uses a demand-based approach to adjusting parking rates at metered parking spaces in the SFpark pilot areas and…
Content type
Date Posted
01/31/2013

Manage uncertainty and discovery associated with procurement of advanced parking management technologies and plan for potential delays resulting from permitting and regulation processes.

The SFpark pilot project of the San Francisco Municipal Transportation Agency (SFMTA) uses a demand-based approach to adjusting parking rates at metered parking spaces in the SFpark pilot areas and…
Content type
Date Posted
01/31/2013

Pursue technology based, high risk policies incrementally to better manage likely organizational and technological challenges.

The SFpark pilot project of the San Francisco Municipal Transportation Agency (SFMTA) uses a demand-based approach to adjusting parking rates at metered parking spaces in the SFpark pilot areas and…
Content type
Date Posted
01/31/2013

Resolve conflicts between traditional data sources by using archived data.

In corridors where there were multiple data sets available for analysis, in the case of conflicting data, staff took a look at historical Performance Monitoring System (PeMS) data in order to…
Content type
Date Posted
10/02/2012

In planning for a demand-responsive pricing based parking management system, involve executive leadership, seek strong intellectual foundations, strike the right balance between complexity and simplicity, and emphasize data collection and project eva

Do not underestimate the scope of work. It is easy to underestimate the scope, magnitude, and technological sophistication necessary to offer real-time parking data and provide demand responsive…
Content type
Date Posted
02/01/2012

Adjust the different expectations and motivations of public and private partners to prevent future delays.

The public and private partners approached TravInfo with different motivations and expectations. The public side generally hoped to disseminate accurate and timely traveler information as widely as…
Content type
Date Posted
03/21/2007

Ensure the long-term stability of an interagency incident management program by creating dependencies and by managing for leadership succession.

Formalizing the incident management effort existing in many cities into an incident management program can make incident management a core agency activity at senior executive levels and demonstrate a…
Content type
Date Posted
06/30/2006

Solicit executive support for an incident management program, but rely on staff-level champions and administrative support for day-to-day guidance of the program.

While no single approach can be prescribed for all incident management efforts, a flexible framework based on experiences from successful incident management programs in the United States can be…
Content type
Date Posted
06/30/2006

Coordinate across jurisdictions/regions and share resources to reduce future costs and delays.

There is some form of incident management activity in most major and many mid-sized urban areas. Typically this involves each agency carrying out its own responsibilities, with primarily working-…
Content type
Date Posted
06/30/2006

Take advantage of time-specific opportunities to organize and build support for a formal incident management program.

The Regional Traffic Incident Management Programs: Implementation Guide aims to explain general steps to implementation (with an institutional, rather than technical, focus), and is based on…
Content type
Date Posted
06/30/2006

Recognize that interoperability is becoming an important issue in achieving the vision of a nationwide 511 system.

511 system deployers should recognize that interoperability is becoming an important issue in achieving the vision of a nationwide 511 System and consider ways to achieve interoperability in their…
Content type
Date Posted
09/16/2005

Utilize well-equipped safety service patrols to assist highway motorists after vehicle malfunctions or crashes, and to coordinate a safe and efficient response.

A 2.2-mile urban transit priority corridor in San Francisco was estimated to cost $67.1 million.

Content references source material no longer available at its original location.
This study examined a proposed 2.2 mile transit priority corridor in San Francisco that would incorporate many features of Bus Rapid Transit (BRT) including transit only lanes, transit priority…
Content type
Made Public Date
10/31/2017

Deployment of freeway congestion pricing system in 5 major U.S. metropolitan areas estimated to cost $1.8 billion

Content references source material no longer available at its original location.
Growing congestion on metropolitan highway networks poses a substantial threat to the U.S. economy and to the quality of life of millions of Americans. Congestion pricing – sometimes called value…
Content type
Made Public Date
08/30/2014
Taxonomy (ARC-IT) Road Use Charging (TM11)

Transit signal priority detection systems range from $2,500 to $40,000 per intersection and $50 to $2,500 per vehicle, depending on the type of detection used.

Background Transit preferential treatments have been deployed across the United States and around the world in order to improve travel times and reliability of bus and light rail routes. Examples of…
Content type
Made Public Date
06/03/2013
Taxonomy (ARC-IT) Transit Signal Priority (PT09)

Planning-level studies indicate that an effective combination of ICM strategies can be implemented for $7.5 Million per year (annualized capital and O&M).

Based on information from 18 agencies worldwide, the costs of real-time bus arrival information systems vary depending on AVL technology, fleet size, and provisioning of real-time information.

This TCRP synthesis report presents information on the state of the practice in real-time bus arrival information systems based on literature research and survey of transit agencies in the United…
Content type
Made Public Date
06/01/2004

Implementation costs for automated red light camera systems range from $67,000 to $80,000 per intersection.

This paper examined current red light camera technology, assessed system effectiveness, and outlined major issues associated with deployment. In addition to a review of the basic components of this…
Content type
Made Public Date
09/30/2003