Sijun Shen

Dr. Sijun Shen


Research Focus & Metrics

Academic Career Length

8Years (2019-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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14 May 2020 in Accident Analysis & Prevention
Verified
Journal Article
Closed access
SSSijun Shen
Sijun Shen
MBMarco H. Benedetti
Marco H. Benedetti
SZSongzhu Zhao
Songzhu Zhao
LWLai Wei
Lai Wei
MZMotao Zhu
Motao Zhu

1 December 2019 in Journal of Safety Research
Verified
Journal Article
Closed access
SSSijun Shen
Sijun Shen
CNCaitlin Northcutt
Caitlin Northcutt
Nick StamatiadisNick Stamatiadis
Nick Stamatiadis
MZMotao Zhu
Motao Zhu

28 February 2020 in Journal of Safety Research
Verified
Journal Article
Closed access
ALAmy Li
Amy Li
SSSijun Shen
Sijun Shen
ANAnn Nwosu
Ann Nwosu
KRKendra Ratnapradipa
Kendra Ratnapradipa
JCJennifer Cooper
Jennifer Cooper
MZMotao Zhu
Motao Zhu

SSSijun Shen
Sijun Shen
MRMarizen Ramirez
Marizen Ramirez
CHCara Hamann
Cara Hamann
NMNichole L Morris
Nichole L Morris
Peek-Asa CorinnePeek-Asa Corinne
Peek-Asa Corinne
MZMotao Zhu
Motao Zhu
Introduction: The aging population has been rapidly growing in the United States (U.S.). In line with this trend, older adults’ mobility and transportation safety are an increasing priority. Many states have implemented driver licensure laws specific to older adults to limit driving among the elderly with driving skill decline. Evaluations of these laws have primarily focused on their safety benefits related to older drivers’ fatal crash rate or injury rate. However, very few studies investigated licensure law effects on older adults’ mobility. Objective: The objective of our study is to evaluate the association between older driver licensure laws and older adult daily traveling and passenger exposure. Methods: The 2003–2017 American Time Use Survey (ATUS) data were linked with statewide driver licensure law provisions. Adults aged 55–64 years were used as the reference group to control for the effects of non-licensure-law factors (e.g., economic trend). We used modified Poisson regressions with robust variance to estimate the relationships between licensure law provisions and the likelihoods of older men and women’s daily traveling and passenger behaviors. Results: Laws requiring a vision test at in-person renewal were associated with increased daily traveling likelihood for women aged 75 years or older, primarily as a passenger. Laws requiring a knowledge test were related to a reduced daily overall traveling likelihood for women aged 75 years or older. Conclusions: In general, licensure law provisions are not strongly related to older adults’ mobility, in particular for older male adults. Older female adults’ daily mobility may be more likely to be influenced by the change of licensure laws than older male adults. The existence of gender-based disparities in responding to licensure laws requires future studies to account for the gender difference in estimating the effects of those traffic policies on older adults’ mobility and traffic safety.