Cited by 128Traffic and Road SafetyTransportation Planning and OptimizationUrban Transport and Accessibility

Perceived risk and modal choice: risk compensation in transportation systems

Noland, Robert B.·1995·Accident Analysis & Prevention

Abstract

A transportation mode choice analysis is performed that examines behavioral responses to perceived risk in the choice of mode for daily commute trips. This methodology provides a technique for examining, by means of disaggregate individual level data, risk-compensating effects in transportation systems. Various measures of perceived risk are examined for explaining modal choice. Other studies have described how safety regulations have resulted in increases in "driving intensity." This study defines one component of driving intensity to be the increased probability of commuting by automobile. The results show that modal shifts occur when risk perceptions for a given mode are reduced. To demonstrate potential risk-compensating effects within the transportation system, an estimate of changes in accident fatalities due to commuting is derived using rough estimates of fatalities per person-mile travelled. It is shown that a given change in the perceived risk of commuting by automobile results in a less than proportionate change in net commuting fatalities. The relative magnitude is dependent on how objective reductions in risk translate into perceived reductions in risk. This study also shows that perceived safety improvements in bicycle transportation have an aggregate elasticity value that is greater than one. This means that bicycle safety improvements attract proportionately more people to bicycle commuting (i.e. a 10% increase in safety results in a greater than 10% increase…

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Crossref · 10.1016/0001-4575(94)00087-3

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  • The presence of human drivers on the roads will pose a profound challenge to driverless vehicles because human drivers will likely learn to take advantage of the programmed behaviour of driverless vehicles.

    “The presence of human drivers on the roads will also pose another - more profound - challenge to driverless vehicles, owing to the likelihood that human drivers will quickly learn to take advantage of the programmed behaviour of their driverless counterparts.”

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Authors
Noland, R. B.
Affiliations
University of California, Irvine (US)
Corresponding author
Noland, Robert B.
Venue
Accident Analysis & Prevention
Publisher
Elsevier BV
Published
1995-08
Volume
27
Issue
4
Pages
503-521
ISSN
0001-4575 (ISSN-L)
OpenAlex
W2079641705
Cited by
128
References
33
Citations by year
2026: 3 · 2025: 7 · 2024: 3 · 2023: 10 · 2022: 5 · 2021: 7 · 2020: 6 · 2019: 6 · 2018: 6 · 2017: 4 · 2016: 7 · 2015: 4 · 2014: 4 · 2013: 6 · 2012: 8
FWCI
7.16
Type
journal article
Language
en
Open access
closed
Locations
  • Accident Analysis & Prevention (publishedVersion)
  • PubMed (publishedVersion)
Funders
University of Pennsylvania
Topics
  • Physical Sciences › Engineering › Safety, Risk, Reliability and Quality › Traffic and Road Safety
  • Social Sciences › Transportation › Transportation Planning and Optimization
  • Social Sciences › Transportation › Urban Transport and Accessibility
Keywords
risk perception, risk compensation, mode choice, commuting, bicycle commuting, cyclist safety, accident mortality, modal shift, safety regulations, transport safety
MeSH terms
Accidents, Traffic, Attitude to Health, Choice Behavior, Female, Humans, Male, Probability, Psychological Theory, Surveys and Questionnaires, Risk-Taking, Safety, Transportation, Logistic Models

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