Effect of attention on detection of the electronic siren of an ambulance

Baba Hirohiko, Ebata Masanao

This paper describes two factors affecting the detectable level of the electronic siren used on an ambulance,both of which are concerned with attention:as follows,(1)increasing of detection level of the siren based on directing attention to the other task(driving) rather than detecting the signal,(2)the difference between the detection level determined when the signal(an electronic siren)is expected and when it is not expected. As the results of the experiment,we got the following results: (1)When A person pays attention to driving,the detection level of a siren increases as the speed of the car increases,the difference of the threshold between at driving and at having no task,amounts to 1.5 dB at the moderate speed(60 km, h)and the rate of increase of the threshold is 0.5 dB/ 10 km/h. (2)the difference between the detection level for the expected signal and for the unexpected one,varies with the points in the room;at the rear part of the room,the rate of detection;for the expected signal is 50 % higher than that for the unexpected one. Based on these results,we estimated the distance at which person noticed an ambulance when he or she was driving a car on the actual road.

Effect of attention on detection of the electronic siren of an ambulance

Bibliographic Information

Search this article

Description

Journal

Citations (2)*help

Keywords

Details 詳細情報について

Export

Report a problem