驾驶员的动态反应时研究

A STUDY OF DRIVERS' DYNAMIC BRAKING-RESPONES TIME

本研究应用DFY-1型动态反应时测试仪,以解放CA10B 型卡车为实验用车,结合日常运输任务,对三种年龄组(20—29岁、30—39岁、40—49岁)的30名驾驶员,在三种车速(静态,30公里/小时及50公里/小时)条件下的反应时、动作时及制动反应时进行了测试。结果表明:车速对驾驶员的反应时及制动反应时有显著影响,而对动作时则无显著影响;驾驶员的年龄对反应时、动作时及制动反应时均无显著影响.本研究结果为加强驾驶员的安全教育与管理,控制车速提供了佐证。更高车速条件下驾驶员的反应时特点尚待进一步研究。

The purpose of this study was to detect the effects ofdrivers'age and automobile speed on the braking-responsetime of Chinese drivers.Assisted by DFY-1 dynamic re-sponse timer,we measured drivers'braking-responsetime for 3 indexes:recognition time,movement time andtotal reaction time.Subjects for this study were 30 maledrivers driving Jie-fang CAloB automobiles,including 11old-aged(40-49),9 middle-agde ones(30-39)and 10young-aged(20-29)drivers.We tested the subjects onthe road at 0,30 km/h and 50 km/h while they wereengaged in their freight travelling.The results indicatedthat:1)there was no significant effect of age factor onall the th(?)ee indexes of braking-response time;2)therewere significant effects of automobile speeds on thedrivers'response time and total response time,but not onmovement time.The results provided support for the ne-cessity of enhancing the education in safe driving andmanagement of drivers,and controlling the speed ofdriving.Furhter studies are expected to detect the charac-teristics of dynamic braking-response time at still higherspeeds.