Safety

The Development Of An Accident Database To Structure Land Use Regulations In Airport Runway Approach Zones Part II

Cooper, Douglas L.
Chira-chavala, T.
1998

This report presents and describes the expanded database containing 873 aviation accidents which occurred within five miles of an airport. Section 2 contains a description of the development of the database and a discussion of the criteria used in selecting accidents for the database. Section 3 provides a description of the database itself as well as a set of statistics that provide a comprehensive overview of the accidents. A set of aircraft accident scatter plots developed from the accident data points is presented in section 4. The purpose of these plots is to provide a picture of the...

Improving The Representation Of Human Error In The Use Of The Flight Crew Human Factors Integration Tool

Gosling, Geoffrey
Roberts, Karlene H.
Jayaswal, Arpana
1998

In May 1996, the FAA announced a new and innovative approach to reach a goal of "zero accidents," known as the Global Analysis and Information Network (GAIN). This would be a privately owned and operated international information infrastructure for the collection, analysis, and dissemination of aviation safety information, that would involve the use of a broad variety of worldwide aviation data sources, coupled with comprehensive analytical techniques, to facilitate the identification of existing and emerging aviation safety problems. A major component of the GAIN approach is the...

Assessing the Variation of Curbside Safety at the City Block Level

Medury, Aditya, PhD
Vlachogiannis, Dimitris;
Grembek, Offer, PhD
2020

Investigating the dynamics behind the likelihood of vehicle crashes has been a focal research point in the transportationsafety field for many years. However, the abundance of data in today's world generates opportunities for deepercomprehension of the various parameters affecting crash frequency. This study incorporates data from many differentsources including geocoded police-reported crash data, curbside infrastructure data and socio-demographic data for thecity of San Francisco, CA. Findings revealed that the GFMNB model provides a better statistical fit than the FMNB andNB model in...

Impacts of California's Graduated Licensing Law of 1998: An assessment by the Institute of Transportation Studies at UC Berkeley of the effects of the law on fatal and injury crashes of 16 year-old drivers

Cooper, Douglas
Gillen, David
Atkins, Frank
2004

In July 1998 California changed its graduated driver licensing laws (GDL) for new drivers under the age of 18 to include restrictions on hours of driving, carrying teen-age passengers, and requiring more adult supervised driving practice. With fatal and injury crash data from California's Statewide Integrated Traffic Records System, this study, sponsored by the California State Automobile Association, used standard regression analysis as well as the Bai-Perron stochastic multiple structural break model to determine the effect of the law on teen-age passengers and crash rates of 16 year-old...

California’s Freeway Service Patrol Program: Management Information System Annual Report Fiscal Year 2020-21

Mauch, Michael
Skabardonis, Alex
2022

The Freeway Service Patrol (FSP) is an incident management program implemented by Caltrans, the California Highway Patrol and local partner agencies to quickly detect and assist disabled vehicles and reduce non-recurring congestion along the freeway during peak commute hours. The first FSP program was piloted in Los Angeles and was later expanded to other regions by state legislation in 1991. As of June 2020, there were sixteen participating FSP Programs operating in California, deploying 305 tow trucks and covering over 1,900 (centerline) miles of congested California freeways. The...

Safety and Other Impacts of Vehicle Impound Enforcement

Cooper, Douglas
Chira-Chavala, T.
Gillen, David
2000

California vehicle impound law took affect on January 1, 1995. The law allows a police officer to seize a vehicle operated by a person whose license is suspended or revoked or who has never been issued a license. The seized vehicle shall then be impounded for 30 days. In California, a driver must be stopped for some other infraction before his/her license can be checked. The City of Upland, located in western San Bernardino County, has a population of 67,453 residing in a 15.2 square-mile area. The city’s 169 miles of roadways support about 600,000 vehicle-miles of travel daily. Upland...

California’s Freeway Service Patrol Program: Management Information System Annual Report Fiscal Year 2016-17

Mauch, Michael, PhD
Skabardonis, Alex, PhD
2018

The Freeway Service Patrol (FSP) is an incident management program implemented by Caltrans, the California Highway Patrol and local partner agencies to quickly detect and assist disabled vehicles and reduce non-recurring congestion along the freeway during peak commute hours. The first FSP program was piloted in Los Angeles, and was later expanded to other regions by state legislation in 1991. As of June 2017, there were fourteen participating FSP Programs operating in California, deploying 324 tow trucks and covering over 1,718 (center-line) miles of congested California freeways. The...

California’s Freeway Service Patrol Program: Management Information Systems Annual Report Fiscal Year 2015-2106

Mauch, Michael
Skabardonis, Alex
2017

The Freeway Service Patrol (FSP) is an incident management program implemented by Caltrans, the California Highway Patrol and local partner agencies to quickly detect and assist disabled vehicles and reduce non-recurring congestion along the freeway during peak commute hours. The first FSP program was piloted in Los Angeles, and was later expanded to other regions by state legislation in 1991. As of June 2016, there were fourteen participating FSP Programs operating in California, deploying over 340 tow trucks and covering over 1,800 (center-line) miles of congested California freeways....

California’s Freeway Service Patrol Program: Management Information System Annual Report Fiscal Year 2017-18

Mauch, Michael
Skabardonis, Alex
2019

The Freeway Service Patrol (FSP) is an incident management program implemented by Caltrans, the California Highway Patrol and local partner agencies to quickly detect and assist disabled vehicles and reduce non-recurring congestion along the freeway during peak commute hours. The first FSP program was piloted in Los Angeles, and was later expanded to other regions by state legislation in 1991. As of June 2018, there were fourteen participating FSP Programs operating in California, deploying 318 tow trucks and covering over 1,725 (center-line) miles of congested California freeways. The...

A Safe System Approach to Pedestrian High Injury Network Development in Oakland, California

Chen, Angie
2024

As jurisdictions update their High Injury Networks, discrepancies between the initial and updated HINs are to be expected. However, this lack of stability and consistency can negatively impact the prioritization of limited resources. In order to mitigate known issues with crash data underreporting and statistical biases, I examined strategies for utilizing data on underlying roadway characteristics to augment traditional collision analysis. Using the City of Oakland as a case study city, I assessed the stability of the pedestrian High Injury Network across two consecutive five-year periods...