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State
Country
Geo Type
Latitude
32.72
Longitude
-117.16
Content that references this location
Vision-based Site Monitoring System Deployed at Six Exit Ramps in Sacramento Revealed a 53 Percent Reduction in the Wrong-Way Event Rate.
METHODOLOGY
The VBSM system utilizes an integrated, outdoor-ready network camera, with a built-in processor to support on-board analytics for WWD detection and traffic volume counter, along with…
Content type
Date Posted
07/25/2023
Taxonomy (ARC-IT)
Infrastructure-Based Traffic Surveillance (TM01)
Geolocation links
AV Microsimulation Findings Reveal an AV-Exclusive Lane May Increase Traffic Flow and Density by up to 14 Percent and 24 Percent, Respectively.
METHODOLOGY
The traffic simulation modeled three different scenarios:
Scenario
Description
AV MPR Modeled
1
existing volumes/network
0 percent
2
existing volumes with AV adoption on all lanes
varying…
Content type
Date Posted
10/27/2021
Taxonomy (ARC-IT)
Regional Traffic Management (TM07)
Geolocation links
Field Tests on State Route 78 in California Showed That Variable Speed Advisory (VSA) Signs Can Increase Average Travel Speeds by 8.71 Percent During Morning Peak Hours.
METHODOLOGY
This study first tested the VSA algorithm in a microsimulation model to replicate the actual freeway environment and then implemented it in the field. A website for real-time traffic…
Content type
Date Posted
10/22/2021
Taxonomy (ARC-IT)
Variable Speed Limits (TM20)
Geolocation links
In San Diego, ICM improves mobility for most commuters on I-15 saving them more than 1,400 person hours each day during peak commute periods.
FINDINGS
Based on a cluster analysis representing weekday travel characteristics, travel times improved in two peak directions as a result of ICM on I-15. The following overall findings were…
Content type
Date Posted
06/19/2018
Taxonomy (ARC-IT)
Intermittent Bus Lanes (PT10),
HOV/HOT Lane Management (ST06),
Traffic Information Dissemination (TM06),
Integrated Decision Support and Demand Management (TM09),
Road Use Charging (TM11),
Dynamic Lane Management and Shoulder Use (TM22),
Restricted Lane Warnings (VS10)
Geolocation links
Free floating, one-way car sharing model reduces GHG per household by up to 18 percent
Car2go is currently the largest carsharing operator in the world, with a presence in nine countries and nearly 30 cities. It operates as a one-way instant access carsharing system within a pre-…
Content type
Date Posted
01/06/2017
Benefit-Cost Ratios of up to 25.8:1 have been produced in regions with aggressive Freeway Service Patrol programs.
FINDINGSVery few of the programs surveyed reported conducting an official benefit-cost ratio analysis. Currently, no national standard exists for measuring the benefit-cost ratio of service patrol…
Content type
Date Posted
03/26/2014
Taxonomy (ARC-IT)
Roadway Service Patrols (PS08)
During the planned expansion of the I-15 HOT lanes in San Diego a survey of facility users found that 71 percent considered the extension fair with few differences based on ethnicity or income.
FINDINGSConversion of HOV lanes to HOT lanes
In San Diego and Minneapolis, HOT lanes received a high level of support across all income groups.Variable pricing on new or rehabilitated facilities…
Content type
Date Posted
11/30/2011
Taxonomy (ARC-IT)
Integrated Decision Support and Demand Management (TM09),
Electronic Toll Collection (TM10),
Road Use Charging (TM11)
Geolocation links
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
Taxonomy (ARC-IT)
Parking Electronic Payment (PM03),
Integrated Decision Support and Demand Management (TM09),
Road Use Charging (TM11),
Electronic Toll Collection (TM10)
Geolocation links
Singapore | Statewide, Florida, United States | Florida, United States | Houston, Texas, United States | San Diego, California, United States | California, United States | San Francisco, California, United States | Hoboken, New Jersey, United States | Statewide, Oregon, United States | Minneapolis, Minnesota, United States | Washington, United States | London, England
Integrated Corridor Management (ICM) on the I-15 Corridor in San Diego yielded an estimated benefit-to-cost ratio of 9.7:1.
MethodologyThe modeling approach chosen came from an analysis of capabilities found in existing AMS tools and from the ICM Test Corridor project. The approach was an integrated platform that…
Content type
Date Posted
09/28/2011
Taxonomy (ARC-IT)
Intermittent Bus Lanes (PT10),
Integrated Decision Support and Demand Management (TM09),
Dynamic Lane Management and Shoulder Use (TM22),
Restricted Lane Warnings (VS10),
HOV/HOT Lane Management (ST06),
Road Use Charging (TM11),
Traffic Information Dissemination (TM06)
Geolocation links
Value pricing has been shown to increase revenue, reduce congestion by maximizing lane capacity and reduce travel time of highway transportation.
Content references source material no longer available at its original location.
METHODOLOGY:
The data collection process involved gathering information and existing reports from each of the project managers and associated research teams. Reports from the operating projects…
Content type
Date Posted
08/31/2010
Early HOV to HOT conversion projects implemented in San Diego saved I-15 FasTrak users up to 20 minutes compared to main line travelers.
PROJECT FINDINGSI-15 San Diego
In the mid-1990s express toll lanes were constructed in the median of SR-91 to improve travel between Orange County and southern Los Angeles. The toll lanes were…
Content type
Date Posted
02/25/2010
Taxonomy (ARC-IT)
Integrated Decision Support and Demand Management (TM09),
Road Use Charging (TM11),
Electronic Toll Collection (TM10)
Geolocation links
Integrated Corridor Management (ICM) strategies for the I-15 Corridor between San Diego, California and destinations to the northeast produces $13.7 million in user benefits per year, and over the 10-year life cycle of the ICM systems producing a tot
Content type
Geolocation links
Have a Basic Level of Data, Data Exchange, and Situational Awareness Capabilities for Future Integrated Corridor Management Systems and Establish Effective Standards to Support Large-Scale Data Volumes and Data Exchange.
Some key lessons learned and recommendations for large scale traffic management across multiple ICMs are listed below:
Have a basic level of data, data exchange, and situational awareness…
Content type
Date Posted
04/28/2023
Taxonomy (ARC-IT)
Integrated Decision Support and Demand Management (TM09)
Signage such as “Keep Lane Assist On” is Recommended for All Levels of Vehicle Automation, Especially for Lower Levels of Automation.
Use highly reflective, clearly visible, and distinct lane markings and signage for proper AV sensor operation. Improve striping on gore and ramp areas to enhance machine vision systems’ performance…
Content type
Date Posted
10/27/2021
Taxonomy (ARC-IT)
Autonomous Vehicle Safety Systems (VS01),
Infrastructure Enhanced Cooperative Adaptive Cruise Control (VS15),
Automated Vehicle Operations (VS16),
Regional Traffic Management (TM07)
Geolocation links
The Distance Between Consecutive Variable Speed Advisory (VSA) Signs Installed on State Highways Should Not Be Greater Than One-Half Mile According to a Caltrans Field Study.
The following were lessons learned from field testing.
Implement VSA sign with radar detection to better estimate the mainline traffic and to evaluate driver compliance using traffic speed and…
Content type
Date Posted
10/22/2021
Taxonomy (ARC-IT)
Variable Speed Limits (TM20)
Geolocation links
Agencies that manage multimodal transportation corridors can use AMS methodology with ICM decision support systems to facilitate predictive, real-time, and scenario-based decision-making.
AMS aids in the broader goals of ICM Evaluation by providing a framework that can be used to quantify potential and actual benefits of localized ICM strategies. In San Diego, AMS instigated the use…
Content type
Date Posted
06/21/2018
Taxonomy (ARC-IT)
Traffic Information Dissemination (TM06),
Integrated Decision Support and Demand Management (TM09),
Intermittent Bus Lanes (PT10),
Dynamic Lane Management and Shoulder Use (TM22),
Restricted Lane Warnings (VS10),
Traffic Signal Control (TM03),
Road Use Charging (TM11),
HOV/HOT Lane Management (ST06),
Emissions Monitoring (ST01),
Eco-Traffic Metering (ST03),
Traffic Metering (TM05),
Personalized Traveler Information (TI02)
Geolocation links
Using Analysis, Modeling, and Simulation (AMS) to Determine if Integrated Corridor Management (ICM) can Improve Corridor Operations
This report documents the analysis methodologies, tools and performance measures used to analyze Integrated Corridor Management (ICM) strategies for the I-15 Corridor, and presents high-level results…
Content type
Date Posted
02/20/2014
Taxonomy (ARC-IT)
Traffic Information Dissemination (TM06),
Integrated Decision Support and Demand Management (TM09)
Geolocation links
Set toll prices and vehicle occupancy requirements to maintain favorable travel conditions on HOT lanes.
In order to maximize the efficiency of HOT lanes, increase travel time savings and attract paying users, HOT lanes must provide premium travel conditions and predictable trip times. Operators vary…
Content type
Date Posted
06/27/2007
Taxonomy (ARC-IT)
Integrated Decision Support and Demand Management (TM09),
Road Use Charging (TM11),
Electronic Toll Collection (TM10)
Geolocation links
Utilize standard highway project management procedures and tools to successfully implement HOT lane projects.
Successful implementations of HOT lane projects require the application of standard and thorough highway project management procedures. HOT lane projects should be carefully evaluated and planned…
Content type
Date Posted
06/27/2007
Taxonomy (ARC-IT)
Integrated Decision Support and Demand Management (TM09),
Road Use Charging (TM11),
Electronic Toll Collection (TM10)
Geolocation links
Ensure effective public and stakeholder outreach in order to garner support for HOT lanes.
Outreach and consensus building activities are critical components of HOT lane implementation from the time preliminary investigations begin though the operational period. HOT lanes are a relatively…
Content type
Date Posted
06/27/2007
Taxonomy (ARC-IT)
Integrated Decision Support and Demand Management (TM09),
Road Use Charging (TM11),
Electronic Toll Collection (TM10)
Geolocation links
The cost to design and implement a mobile transit fare payment ticketing system for a medium sized city was estimated at $34.2 million.
In December of 2018, the San Diego Metropolitan Transit System procured a new fare payment system in order to update its existing system, which had been procured in 2003. It found that its fare…
Content type
Made Public Date
04/17/2020
Taxonomy (ARC-IT)
Transit Fare Collection Management (PT04)
Geolocation links
The cost to evaluate ICM using AMS tools was estimated at five percent of the deployment budget.
The focus of the ICM Post-Deployment assessment was to investigate the impacts of ICM in its "as deployed" state in San Diego, California using Analysis, Modeling and Simulation (AMS) tools.…
Content type
Made Public Date
06/19/2018
Taxonomy (ARC-IT)
Intermittent Bus Lanes (PT10),
Integrated Decision Support and Demand Management (TM09),
Dynamic Lane Management and Shoulder Use (TM22),
Restricted Lane Warnings (VS10),
HOV/HOT Lane Management (ST06),
Road Use Charging (TM11),
Traffic Information Dissemination (TM06)
Geolocation links
Implementing Integrated Corridor Management (ICM) strategies on the I-15 Corridor in San Diego, California is estimated to cost $1.42 million annualized and a total 10-year life-cycle cost of $12 million.
Interstate 15 (I-15) is a north–south Interstate Highway that runs from San Diego, California, to the Canadian border. I-15 is a major corridor in San Diego that services commuting trips, regional…
Content type
Made Public Date
10/31/2011
Taxonomy (ARC-IT)
Traffic Signal Control (TM03),
Connected Vehicle Traffic Signal System (TM04),
Traffic Information Dissemination (TM06),
Integrated Decision Support and Demand Management (TM09),
Broadcast Traveler Information (TI01),
Road Use Charging (TM11),
Emissions Monitoring (ST01),
Eco-Traffic Metering (ST03),
Traffic Metering (TM05),
Personalized Traveler Information (TI02)
Geolocation links
In San Diego County, the cost to implement ETC with managed lanes on a 26 mile section of I-5 was estimated at $1.7 million.
In San Diego County, researchers conducted a planning study to evaluate the technical, financial, and attitudinal feasibility of implementing managed lanes. The purpose was to reduce congestion and…
Content type
Made Public Date
08/20/2008
Taxonomy (ARC-IT)
Electronic Toll Collection (TM10),
Road Use Charging (TM11),
Integrated Decision Support and Demand Management (TM09)
Geolocation links
The cost to convert two reversible high-occupancy vehicle lanes on an eight-mile stretch of the Interstate-15 in San Diego to high-occupancy toll lanes was $1.85 million. Evidence also suggests that costs to build new high-occupancy toll lanes are s
High-occupancy toll (HOT) lanes are expected to reduce congestion by using capacity more efficiently than either conventional high-occupancy vehicle (HOV) lanes or general-purpose lanes. In an…
Content type
Made Public Date
04/28/2008
Taxonomy (ARC-IT)
Integrated Decision Support and Demand Management (TM09),
Road Use Charging (TM11),
HOV/HOT Lane Management (ST06)
Geolocation links
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