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- W2381584471 abstract "This paper focuses on the effects of signal countdown on vehicle speed and traffic safety.Urban road intersections were chosen for investigation,a radar measuring device was used to collect vehicle speed and other data.Descriptive statistics,analysis of variance and contingency table methods were applied to data analysis.The results show that with regard to effects of a single factor,what having a significant effect on the mean speed is the traffic contravention detection device,not the green signal countdown device,with regard to effects of multiple factors,a higher mean speed will be attained when there is a green signal countdown device and no traffic contravention detection device.Green signal countdown device will affect over speed rate greatly and red signal countdown has a great effect on speed discretion.These results indicate that traffic contravention detection devices should be used at the intersections with green signal countdown devices.A long enough green signal interval should be ensured at intersections." @default.
- W2381584471 created "2016-06-24" @default.
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- W2381584471 date "2012-01-01" @default.
- W2381584471 modified "2023-09-23" @default.
- W2381584471 title "Effects of Signal Countdown on Vehicle Speed and Traffic Safety" @default.
- W2381584471 hasPublicationYear "2012" @default.
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