Search Results - "Tarko, Andrew P."

Analyzing crash frequency in freeway tunnels: A correlated random parameters approach by Hou, Qinzhong, Tarko, Andrew P., Meng, Xianghai

“…•Safety factors in freeway tunnels were investigated.•Three NB models including a correlated random parameters model were estimated.•The positive safety effect…”
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Consistency Analysis of Drivers’ Car-Following Behaviors by Qin, Dingming, Wang, Xuesong, Tarko, Andrew P., Guo, Qiming, Lizarazo-Jimenez, Cristhian

“…AbstractCar-following models are calibrated to account for various driver behaviors such as speed and space headway. Because drivers do not all drive the same…”
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Maximum likelihood method of estimating the conflict-crash relationship by Tarko, Andrew P.

“…•ML estimator of probability of crash given traffic conflict proposed. Proposed ML estimation requires assumption of Lomax scale parameter.•ML and OLS…”
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Estimating the expected number of crashes with traffic conflicts and the Lomax Distribution – A theoretical and numerical exploration by Tarko, Andrew P.

“…•Under initial unawareness of hazard, response delays are Lomax-distributed.•Lomax distribution is suitable for traffic conflicts analysis based on…”
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A unifying view on traffic conflicts and their connection with crashes by Tarko, Andrew P.

“…•Severe traffic conflicts caused by unawareness of hazard provide consistent estimation of crash probability.•Potential of harmful collision affects behavior…”
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Use of crash surrogates and exceedance statistics to estimate road safety by Tarko, Andrew P.

“…► A new modeling paradigm that incorporates crash precursor events is proposed. ► The proposed approach to modeling improves representation of crash…”
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Investigating factors of crash frequency with random effects and random parameters models: New insights from Chinese freeway study by Hou, Qinzhong, Tarko, Andrew P., Meng, Xianghai

“…•A variety of safety factors for Chinese freeways were investigated.•NB models with random effects and random parameters were estimated.•The effect of speed…”
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Feasibility study of highway alignment design controls for autonomous vehicles by Ye, Xinchen, Wang, Xuesong, Liu, Shuang, Tarko, Andrew P.

“…•Feasibility of highway geometric design controls for AVs was verified.•Controls for sag and crest vertical curves and combined alignments were…”
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Analyzing road near departures as failure-caused events by Tarko, Andrew P.

“…•Road departures are analyzed in a driving simulator with failure-caused near departures.•The method connects drivers’ behavior with the risk of road…”
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Validity of failure-caused traffic conflicts as surrogates of rear-end collisions in naturalistic driving studies by Tarko, Andrew P., Lizarazo, Cristhian G.

“…•Rear-end traffic conflicts experienced by three categories of drivers: young males, mature females, and mature males were analyzed.•The Lomax-based analysis…”
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Adequacy of negative binomial models for managing safety on rural local roads by Hall, Thomas, Tarko, Andrew P.

“…•Evaluates suitability of negative binomial models when applied to rural local roads with a low sample mean of crashes.•Bivariate negative binomial and ordered…”
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Predicting crash likelihood and severity on freeways with real-time loop detector data by Xu, Chengcheng, Tarko, Andrew P., Wang, Wei, Liu, Pan

“…•We develop a model that predicts the crash likelihood at different severity levels.•We link crash likelihood with traffic flow variables by sequential logit…”
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Barrier-relevant crash modification factors and average costs of crashes on arterial roads in Indiana by Zou, Yaotian, Tarko, Andrew P.

“…•Road barriers tend to increase the number of recorded crashes.•Road barriers considerably reduce the severity of barrier-relevant crashes.•Installation of…”
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An insight into the performance of road barriers − redistribution of barrier-relevant crashes by Zou, Yaotian, Tarko, Andrew P.

“…•This study estimated the probabilities of barrier-relevant crash events affected by the presence, type, and location of road barriers.•The crash…”
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The extreme value theory approach to safety estimation by Songchitruksa, Praprut, Tarko, Andrew P.

“…Crash-based safety analysis is hampered by several shortcomings, such as randomness and rarity of crash occurrences, lack of timeliness, and inconsistency in…”
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Effectiveness of cable barriers, guardrails, and concrete barrier walls in reducing the risk of injury by Zou, Yaotian, Tarko, Andrew P., Chen, Erdong, Romero, Mario A.

“…•We evaluate safety performance of three types of roadway and median barriers.•Safety is measured with the probability of injury or death after hitting an…”
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Markov switching negative binomial models: An application to vehicle accident frequencies by Malyshkina, Nataliya V., Mannering, Fred L., Tarko, Andrew P.

“…In this paper, two-state Markov switching models are proposed to study accident frequencies. These models assume that there are two unobserved states of…”
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Modeling drivers’ speed selection as a trade-off behavior by Tarko, Andrew P.

“…This paper proposes a new model of driver-preferred speeds derived from the assumption that drivers trade-off a portion of their safety for a time gain. The…”
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Tobit analysis of vehicle accident rates on interstate highways by Anastasopoulos, Panagiotis Ch, Tarko, Andrew P., Mannering, Fred L.

“…There has been an abundance of research that has used Poisson models and its variants (negative binomial and zero-inflated models) to improve our understanding…”
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Crash Databases in Australasia, the European Union, and the United States: Review and Prospects for Improvement by Montella, Alfonso, Andreassen, David, Tarko, Andrew P., Turner, Shane, Mauriello, Filomena, Imbriani, Lella Liana, Romero, Mario A.

“…Because the quality of decision making in road safety is dependent on the quality of the data on which decisions are based, efforts to improve the quality,…”
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