City
State
Country
Geo Type
Latitude
38.58
Longitude
-121.49
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
Naturalistic Experiment in California Found Fully Automated Vehicles Increased Households' Vehicle Miles Traveled by 60 Percent, but that Overall Shifts Towards Car-Dependent Travel are Undesirable.
METHODOLOGY
In this study, 43 households were selected from a sampling frame of 4,010 households that had previously participated in a travel survey and agreed to be contacted for follow-up studies.…
Content type
Date Posted
05/26/2023
Taxonomy (ARC-IT)
Automated Vehicle Operations (VS16)
Geolocation links
Field Testing of Coordinated Ramp Metering on a California Highway Resulted in an Average of 7.25 Percent Increase in Ratio of Vehicle Miles Travelled to Vehicle Hours Travelled During the AM Peak Hours, Indicating Traffic Improvement.
METHODOLOGY
After fine-tuning the CRM algorithm using a microscopic simulation of the test site, the research team worked closely with California DOT (Caltrans) for (a) refining the Concept of…
Content type
Date Posted
10/29/2021
Geolocation links
Survey on Roadway Worker Protection Warning Device in Sacramento Shows 83 Percent of Rail Transit Agency Employees Felt Safer with the Device.
Methodology
System effectiveness, including unusual occurrences or comments and system acceptance, was measured in terms of work zone intrusion rates and employee survey responses. Unusual…
Content type
Date Posted
07/21/2021
Taxonomy (ARC-IT)
Incident Scene Safety Monitoring (PS07),
In-Vehicle Signage (TI07),
Dynamic Roadway Warning (TM12),
Autonomous Vehicle Safety Systems (VS01),
Reduced Speed Zone Warning / Lane Closure (VS09)
Geolocation links
A Case Study Estimated That With a 40 Percent CACC Market Penetration Rate Traffic Would Flow at Higher Speeds on SR 99 in California.
METHODOLOGY
This case study used microscopic traffic simulation models to depict the impacts of CACC. The modeling framework was based on a state-of-the-art human-driver model and an adaptive cruise…
Content type
Date Posted
04/30/2021
Taxonomy (ARC-IT)
Connected Eco-Driving (ST09),
Infrastructure Enhanced Cooperative Adaptive Cruise Control (VS15),
Automated Vehicle Operations (VS16),
Cooperative Adaptive Cruise Control (VS14)
Geolocation links
Archived data management systems benefit planning and decision-making within agencies
BenefitsThe data collection and archival characteristics of ADMS are keys to the benefits identified through the case studies. These benefits are:Improved planningImproved policy decision-…
Content type
Date Posted
02/09/2016
Taxonomy (ARC-IT)
ITS Data Warehouse (DM01),
Data Distribution (SU03),
Map Management (SU04),
Object Registration and Discovery (SU06),
Management of Electronic Traffic Regulations (METR) (VS17),
Maintenance and Construction Activity Coordination (MC08),
Regional Traffic Management (TM07),
Integrated Decision Support and Demand Management (TM09),
Weather Information Processing and Distribution (WX02)
An Evaluation of Three Work Zone Intrusion Alarm Systems in California Provided Suggestions to Enhance Visual, Sound, and Sensor Components.
The lessons learned from the project are summarized for the WZIA systems evaluated.
Provide a visual alert and include multiple speakers and volume control to improve sound levels in all…
Content type
Date Posted
09/28/2021
Taxonomy (ARC-IT)
Incident Scene Safety Monitoring (PS07),
In-Vehicle Signage (TI07),
Dynamic Roadway Warning (TM12),
Autonomous Vehicle Safety Systems (VS01),
Reduced Speed Zone Warning / Lane Closure (VS09),
Work Zone Safety Monitoring (MC07)
Geolocation links
Avoid Using Roadway Worker Protection Warning Devices in City Centers or in Small Areas with Multiple Tracks, as Train Indications May Be More of a Nuisance than Helpful to Frontline Workers.
Technical issues with the warning device suggested a wide range of lessons learned during the project, summarized below:
Understand that the use of electronic devices in active trackway could be a…
Content type
Date Posted
07/21/2021
Taxonomy (ARC-IT)
Incident Scene Safety Monitoring (PS07),
In-Vehicle Signage (TI07),
Dynamic Roadway Warning (TM12),
Autonomous Vehicle Safety Systems (VS01),
Reduced Speed Zone Warning / Lane Closure (VS09)
Geolocation links
Ensure good data quality to successfully integrate weather alert system based upon Road Weather Information Systems.
The success of the weather alert notification system depends on accurate and reliable weather data from the sensors, appropriately defined threshold conditions, clear communication of alerts to the…
Content type
Date Posted
05/13/2011
Taxonomy (ARC-IT)
Roadway Automated Treatment (MC03),
Traffic Information Dissemination (TM06),
Weather Information Processing and Distribution (WX02),
Spot Weather Impact Warning (WX03),
Weather Data Collection (WX01),
Regional Traffic Management (TM07)
Geolocation links
Provide written procedures and training for issuing warnings to Regional Transportation Management Center operators for successful weather integration.
The evaluation found that the new weather alert system issued "on time" warnings 88.9 percent of the time and that messages were issued for 13 of the 15 weather events that merited weather warnings.…
Content type
Date Posted
05/09/2011
Taxonomy (ARC-IT)
Roadway Automated Treatment (MC03),
Traffic Information Dissemination (TM06),
Weather Information Processing and Distribution (WX02),
Spot Weather Impact Warning (WX03),
Weather Data Collection (WX01),
Regional Traffic Management (TM07)
Geolocation links
Include driver age, time of day, and intersection characteristics in the design of red light violation algorithms and warning systems, and their field operational tests.
An analysis of four years of data from red light photo enforcement cameras at 11 signalized intersections in the City of Sacramento identified factors that are relevant to the design of violation…
Content type
Date Posted
12/30/2010
Taxonomy (ARC-IT)
Intersection Safety Warning and Collision Avoidance (VS13)
Geolocation links
Anticipate and address challenges to consistently operating a transit signal priority (TSP) system.
The experience of the Sacramento-Watt Avenue transit priority and mobility enhancement demonstration project provides useful lessons for agencies deploying a transit signal priority system.…
Content type
Date Posted
04/09/2008
Taxonomy (ARC-IT)
Transit Signal Priority (PT09)
Geolocation links
Alternative Work Zone Intrusion Alarm (WZIA) Systems in California Range in Cost from $4,630 to $11,100 per Half-Mile.
A work zone intrusion alarm (WZIA) system was tested to improve the safety of the current Caltrans Standard Plans for traffic control in work zones in Sacramento, California. The objective of this…
Content type
Made Public Date
09/28/2021
Taxonomy (ARC-IT)
Incident Scene Safety Monitoring (PS07),
In-Vehicle Signage (TI07),
Dynamic Roadway Warning (TM12),
Autonomous Vehicle Safety Systems (VS01),
Reduced Speed Zone Warning / Lane Closure (VS09),
Work Zone Safety Monitoring (MC07)
Geolocation links
Sacramento Regional Transit District Implements a Roadway Worker Protection System for a Total System Cost of $861,592.
Through partnership with the Federal Transit Administration (FTA), the Sacramento Regional Transit District (SacRT) conducted a demonstration test of a secondary warning device for roadway…
Content type
Made Public Date
07/21/2021
Taxonomy (ARC-IT)
Incident Scene Safety Monitoring (PS07),
In-Vehicle Signage (TI07),
Dynamic Roadway Warning (TM12),
Autonomous Vehicle Safety Systems (VS01),
Reduced Speed Zone Warning / Lane Closure (VS09)
Geolocation links
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)
Geolocation links
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INTELLIGENT TRANSPORTATION SYSTEMS JOINT PROGRAM OFFICE
1200 New Jersey Avenue, SE
Washington, DC 20590
