Using crowd sourcing to locate and characterize conflicts for vulnerable modes.

Autor: Rahman Z; University of Texas at Arlington, USA., Mattingly SP; University of Texas at Arlington, Department of Civil Engineering, Box 19308, Arlington, TX, USA. Electronic address: mattingly@uta.edu., Kawadgave R; University of Texas at Arlington, USA., Nostikasari D; Rice University, USA., Roeglin N; University of Texas at Arlington, USA., Casey C; Toyota, Japan., Johnson T; Vanderbilt University, USA.
Jazyk: angličtina
Zdroj: Accident; analysis and prevention [Accid Anal Prev] 2019 Jul; Vol. 128, pp. 32-39. Date of Electronic Publication: 2019 Apr 05.
DOI: 10.1016/j.aap.2019.03.014
Abstrakt: Most agencies and decision-makers rely on crash and crash severity (property damage only, injury or fatality) data to assess transportation safety; however, in the context of public health where perceptions of safety may influence the willingness to adopt active transportation modes (e.g. bicycling and walking), pedestrian-motor vehicle and other similar conflicts types may define a better performance measure for safety assessment. In the field of transportation safety, an absolute conflict occurs when two parties' paths cross and one of the parties must undertake an evasive maneuver (e.g. change direction or stop) to avoid a crash. Other less severe conflicts where paths cross but no evasive maneuver is required may also impact public perceptions of safety especially for vulnerable modes. Most of the existing literature focuses on vehicle conflicts. While in the past several years, more research has investigated bicycle and pedestrian conflicts, most of this has focused on the intersection environment. A comprehensive analysis of conflicts appears critical. The major objective of this study is two fold: 1) Development of an innovative and cost effective conflict data collection technique to better understand the conflicts (and their severity) involving vulnerable road users (e.g. bicycle/pedestrian, bicycle/motor vehicle, and pedestrian/motor vehicle) and their severity. 2) Test the effectiveness and practicality of the approach taken and its associated crowd sourced data collection. In an endeavor to undertake these objectives, the researchers developed an android-based crowd-sourced data collection app. The crowd-source data collected using the app is compared with traditional fatality data for hot spot analysis. At the end, the app users provide feedback about the overall competency of the app interface and the performance of its features to the app developers. If widely adopted, the app will enable communities to create their own data collection efforts to identify dangerous sites within their neighborhoods. Agencies will have a valuable data source at low-cost to help inform their decision making related to bicycle and pedestrian education, encouragement, enforcement, programs, policies, and infrastructure design and planning.
(Copyright © 2019 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
Externí odkaz: