Projects

Comparable and up-to-date cost data for traffic crashes and crime contribute to informed decision making about allocation of resources and are a critical component of improving safety on our roadways and in our neighborhoods. The goal for this study is to provide the most current cost information about the magnitude of burden imposed by traffic crashes and crime in Michigan. This report represents the seventh in the series of Societal Costs of Traffic Crashes and Crime in Michigan. Michigan-specific monetary and nonmonetary quality of life costs for victims of index crimes (murder, rape, robbery, aggravated assault, burglary, larceny, and motor vehicle theft) and traffic crashes were estimated by experts in the field of economics of traffic crashes and crimes. Monetary costs include costs of medical care, mental health, work loss, public services, adjudication and sanctioning, congestion and environmental factors, and property damage and loss. Quality of life costs are based on the current National Highway Traffic Safety Administration value of statistical life and adjusted for consistency between crimes and crashes.

Principal Investigator: Renée  St. Louis

Strength data for children are needed to improve the safety of products. Currently, minimal information on strength is available for children under age 6 years. This paper describes the development of methods to measure functional, task-relevant strength for children ages 24 to 71 months. Strength measurement methods used for adults and older children must be adapted substantially to obtain meaningful data from this younger cohort. This paper discusses the challenges associated with gathering volitional, maximal force-generation capability for this age cohort with attention to applicability, repeatability, and reproducibility.

Principal Investigator: Monica L. H. Jones

No ride, no healthcare:  New project provides “mobility wallets” to get residents to medical appointments

Two University of Michigan researchers are part of a community-based research project to get Detroit- and Dallas-area residents to doctors’ appointments, pharmacies and other health care services that often are skipped or inaccessible due to a lack of transportation.

Researchers Tayo Fabusuyi, assistant research scientist at the U-M Transportation Research Institute, and Lu Wang, associate chair for research and professor of biostatistics at U-M’s School of Public Health, will analyze and document how health outcomes are impacted by mobility intervention. Statistics they will track include morbidity, mortality, loneliness, stress, life satisfaction, access to health care and missed health care appointments.

The project is funded by a recently announced 10-year, $12-million ComPASS grant from the National Institutes of Health. It will document changes—ideally improvements—in participants’ health once a new “mobility wallet” program is introduced. It is aimed at removing a leading barrier to healthcare access: transportation.

Principal Investigator: Tayo Fabusuyi

This paper presents a study of human driving performance for the targeted geographic area of San Francisco.  The goal of the study was to generate a crash rate estimate that could be used as a human benchmark representing the crash rate for ridehail drivers driving in a lower-speed and dense urban driving environment.   

The study represents an unprecedented large-scale naturalistic ridehail data collection effort over a 2-year period from 2016 to 2018: a collaboration that took place between General Motors (GM), Cruise LLC, the University of Michigan Transportation Research Institute (UMTRI), and the Virginia Tech Transportation Institute (VTTI). 

Principal Investigator: Carol Flannagan

The connected environment that researchers are pursuing allows vehicles to communicate with each other, infrastructure, the cloud and cellular networks, as well as pedestrians and other vulnerable road users. Where the Safety Pilot Model Deployment program previously utilized short range communications, C-V2X utilizes cellular communications.   

The study represents an unprecedented large-scale naturalistic ridehail data collection effort over a 2-year period from 2016 to 2018: a collaboration that took place between General Motors (GM), Cruise LLC, the University of Michigan Transportation Research Institute (UMTRI), and the Virginia Tech Transportation Institute (VTTI). 

 Approximately 3.6 million people in the U.S. use wheelchairs, but they cannot currently use them on aircraft, preventing many from flying. Among those that transfer to airline seating, many report instances of their wheelchairs being damaged during transport, as well as discomfort, injury, and social stigma experienced while transferring to an aircraft seat.

A recent National Academy of Sciences (NAS) consensus document determined that it should be feasible on most commercial aircraft to allow passengers to use their wheelchairs. However, wheelchairs would need to meet the FAA crashworthiness requirements for current aircraft seats. These consist of dynamic tests simulating frontal and vertical loading, plus static pull tests.

While voluntary, RESNA WC19 currently has standards for assessing frontal crashworthiness of wheelchairs used as seating in motor-vehicles. We hypothesize that wheelchairs meeting current RESNA standards for vehicles can meet the FAA crashworthiness requirements for airline seats. To test this hypothesis, we will construct adapted versions of the FAA test fixtures and test wheelchairs that meet current WC19 requirements under frontal, vertical, and static testing conditions. If needed, we would perform additional testing of wheelchairs with modifications made to improve their performance under FAA test conditions. We will also draft procedures that would adapt FAA seat testing standards so they can be used to evaluate wheelchairs.

Principal Investigator: Kathy Klinch