Determination of riding comfort on cycleways using a smartphone application  

作　　者：Anna Niska Leif Sjögren Peter Andrén Christian Weber Tineke de Jong Aslak Fyhri 

机构地区：[1]Department of Infrastructure Maintenance,Swedish National Road and Transport Research Institute(VTI),Linköping SE-58195,Sweden [2]Department of Safety and Behavior,Institute of Transport Economics,Gaustadalleen 21,0349 Oslo,Norway

出　　处：《Journal of Traffic and Transportation Engineering(English Edition)》2024年第4期747-760,共14页交通运输工程学报（英文版）

基　　金：financed by the Swedish Innovation Agency,VINNOVA within the research program Cy City(project number P37476-1);partially financed by the Swedish Transport Administration(grant number TRV 2021/23527);part of the study was financed by the Research Council of Norway(grant number 255628)。

摘　　要：Well maintained cycleways will encourage more people to cycle,as the condition of cycleways is important for the safety,accessibility and riding comfort of cyclists.Despite that,only a few models used to describe the quality of service for cyclists take the surface condition into account.Objective measuring methods are needed to enable reliable and effective assessment of surface conditions,and measurable performance criteria related to the needs of cyclists should be developed.The purpose of this study has been to test the reliability and validity of using accelerometers in smartphones to assess the riding comfort on cycleways.A smartphone application converting three-dimensional accelerometer measurements into a single indicator for cycleways has been used to assess road surfaces in two field studies,in Sweden and Norway,respectively.Both studies assessed test sections of varying quality.To relate the measurements to subjective riding comfort assessments by cyclists,recruited cyclists collected quantitative data using the app,whilst also rating their perceived riding comfort by completing a survey.Measurements were also related to standard road surface condition indicators,generated from a road surface tester equipped with 19 laser sensors:international roughness index(IRI),mega-and macrotexture.The results show that it is possible to describe the unevenness of a cycleway using the technology present in smartphones.A software application can be used to collect and analyse data from the acceleration sensors in the phone,which can then be used to describe the riding comfort of cyclists.It is mainly the unevenness in the 50-1000 mm sizerange that create the greatest discomfort for cyclists,and intermittent vibrations are perceived as more uncomfortable than more evenly distributed vibrations.Therefore,IRI is not a relevant measurement for describing the riding comfort of cyclists.

关 键 词：CYCLIST COMFORT ASSESSMENT Road surface measurement Smartphone application 

分 类 号：U495[交通运输工程—交通运输规划与管理] U491.225[交通运输工程—道路与铁道工程]