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South Carolina Crash Prediction Model Showed Crash Frequency Decreased at Nine of 11 Corridors Equipped with Adaptive Signal Control Systems.

METHODOLOGY Researchers conducted various statistical methods to analyze crash data before and after ASCS deployment to determine safety and operational effects. To determine the effects of ASCS on…
Content type
Benefit
Date Posted
01/21/2022
Taxonomy (ARC-IT) Traffic Signal Control (TM03), Connected Vehicle Traffic Signal System (TM04)
Geolocation links
South Carolina, United States

South Carolina Recommends Adaptive Signal Control Systems on Corridors With Traffic Volumes Between 20,000 and 50,000 Vehicles per Day and Speed Limits Between 40 and 55 mi/h.

Adaptive Signal Control Systems (ASCS) are typically deployed to improve the operational performance of intersections and traffic corridors. ASCS change the signal timing of intersections in real-…
Content type
Lesson
Date Posted
01/21/2022
Taxonomy (ARC-IT) Traffic Signal Control (TM03), Connected Vehicle Traffic Signal System (TM04)
Geolocation links
South Carolina, United States

Choose Thermal Cameras To Detect Pedestrians in Dark Non-Lit Areas As They Can Outperform CCTV Night Vision Under Conditions With Low to No Light.

Choose thermal cameras for dark non-lit conditions. The study results indicated that for dark non-lit conditions thermal camera technology is effective in detecting pedestrians as they outperformed…
Content type
Lesson
Date Posted
12/27/2021
Taxonomy (ARC-IT) Transit Pedestrian Indication (PT11), Dynamic Roadway Warning (TM12), Vulnerable Road User Safety (VS12)
Geolocation links
South Carolina, United States

Gain Support from Enforcement Agencies and Ensure Effective Interagency Interfaces to Successfully Implement an Electronic Crash Data System.

Gaining support from local law enforcement agencies to use the software is key because they are responsible for a large percentage of crash reports. Their data is the primary source for crash…
Content type
Lesson
Date Posted
04/30/2021
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), Traffic Incident Management System (TM08)
Geolocation links
Statewide, South Carolina, United States

South Carolina DOT’s Electronic Crash System Reduced Police Investigation Time by 63 Percent and Decreased Average Report Processing Time by 85 Percent.

Key benefits of SCCATTS were identified, including: The roadside time police officers spend in filling out crash reports went from an average of 33 minutes to 12 minutes, a 63 percent reduction.…
Content type
Benefit
Date Posted
04/30/2021
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), Traffic Incident Management System (TM08)
Geolocation links
Statewide, South Carolina, United States

CV-based adaptive signal control has potential to increase mainline arterial speeds by an average of 5 percent and reduce maximum intersection queue lengths by 66.7 percent even with low market penetration (5 percent CV).

FINDINGS Operational performance improved even for a low CV penetration (5 percent CV) and the benefit increased with increasing CV penetration. 5 percent CV market penetration Average speed…
Content type
Benefit
Date Posted
08/22/2019
Taxonomy (ARC-IT) Emissions Monitoring (ST01), Eco-Traffic Signal Timing (ST02), Eco-Traffic Metering (ST03), Eco-Approach and Departure at Signalized Intersections (ST08), Connected Eco-Driving (ST09), Connected Vehicle Traffic Signal System (TM04), Infrastructure Enhanced Cooperative Adaptive Cruise Control (VS15), Automated Vehicle Operations (VS16)
Geolocation links
Greenville, South Carolina, United States

Standardize reporting and communication processes for partnering agencies when developing a regional travel management center.

Standardize reporting and communication activities between partnering agencies. Understand that it may be difficult to convince partners to make changes to comply with standardization if they do not…
Content type
Lesson
Date Posted
01/26/2018
Taxonomy (ARC-IT) Multi-modal Coordination (PT14), Transit Connection Protection (PT17)
Geolocation links
Aiken, South Carolina, United States

Enabling connected vehicles to pay for priority at signalized intersections yields a benefit cost of at least 1.0 at 20 percent CV penetration and as much as 3.0 at 10 percent CV penetration when including reduced network delay for all vehicles.

Findings Connected vehicles with signal priority experience less delay than non-connected vehicles for all priority direction scenarios up to a certain point, about 20 percent. When all directions…
Content type
Benefit
Date Posted
11/20/2017
Taxonomy (ARC-IT) Traffic Signal Control (TM03), Integrated Decision Support and Demand Management (TM09), Road Use Charging (TM11)
Geolocation links
Clemson, South Carolina, United States

Using sensors and traffic cameras for incident identification and verification yielded benefit-to-cost ratios of 6.54:1 and 12.47:1, respectively.

South Carolina uses sensors (loop and radar) and traffic cameras to detect and verify the location of incidents. The benefit-cost analysis in the report considered the use of these technologies in…
Content type
Benefit
Date Posted
02/09/2016
Taxonomy (ARC-IT) Infrastructure-Based Traffic Surveillance (TM01)
Geolocation links
Charleston, South Carolina, United States   |   Columbia, South Carolina, United States   |   Florence, South Carolina, United States   |   Greenville, South Carolina, United States   |   York, South Carolina, United States

Connected vehicles that receive future state intersection signal control data to support predictive cruise control functions can reduce fuel consumption 24 to 47 percent.

Content references source material no longer available at its original location.
FINDINGSIn a suburban driving scenario, predictive cruise control (PCC) equipped vehicles used 47 percent less fuel and generated 56 percent fewer CO2 emissions compared to baseline conditions…
Content type
Benefit
Date Posted
02/09/2016
Taxonomy (ARC-IT) Emissions Monitoring (ST01), Eco-Traffic Signal Timing (ST02), Eco-Traffic Metering (ST03), Eco-Approach and Departure at Signalized Intersections (ST08), Connected Vehicle Traffic Signal System (TM04), Infrastructure Enhanced Cooperative Adaptive Cruise Control (VS15), Connected Eco-Driving (ST09), Automated Vehicle Operations (VS16)
Geolocation links
Greenville, South Carolina, United States
ITS Deployment Evaluation

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