Research And Optimization On The Effectiveness Of Evacuation Signs In University Library Based On Eye Movement Experiment

With the development of national economy,university library as one of the traditional media for the public to acquire cultural knowledge is becoming more and more important.At the same time,the development trend of building scale expansion,design complexity and function diversification of university library makes university library become a densely populated place with increasing risks.Therefore,rapid evacuation of researchers has become a hot spot.Evacuation signs can guide the target audience to evacuate quickly and correctly when an accident occurs,which is one of the important links of the emergency evacuation system.However,there is still a vacancy in the study of evacuation signs in university libraries.Therefore,this paper studies the evacuation signs of university library.First of all,this paper studies the influencing factors and national standards of evacuation signs of university library,and makes clear the necessity of studying the evacuation signs of university library.This paper puts forward six stages of information processing of evacuation signs by the target audience,and preliminarily determines 27 three-level indicators of the effectiveness rating system of evacuation signs in university library.Using factor analysis to reduce the dimension of indicators,six secondary indicators are obtained.Then this paper builds a complete evaluation system of the effectiveness of evacuation signs in university library using the network analytic hierarchy process(ANP),using the super decision-making(SD)software to calculate the index weight.Then,take the Chenglong Campus Library of Sichuan Normal University as the research object to evaluate the effectiveness of evacuation signs.The fuzzy comprehensive evaluation method(FCE)was used to score the library evacuation signs,and 70.3216 ?(60,80] was obtained.The evaluation grade was good,indicating that there is still a large optimization space for the evacuation signs of Chenglong Campus Library of Sichuan Normal University.Then the eye movement experiment was carried out to study the "location effectiveness" of evacuation signs.With the help of tobii120,eye movement tracking technology was used to study four typical scenes(stairwell,bookshelf room,self study area,corridor)of Chenglong Campus Library of Sichuan Normal University.The experimental results show that the most significant location of evacuation signs in staircases and bookshelves is different from the actual location.Therefore,it is concluded that the effectiveness of evacuation signs in Chenglong Campus Library of Sichuan Normal University is good as a whole,which can be improved for the local part of the system,that is,the objective factors of evacuation signs(subordinate location effectiveness,design significance)can be optimized,and the effectiveness of evacuation signs can be optimized first.Finally,the optimization design and eye movement experiment of the Chenglong Campus Library of Sichuan Normal University are carried out.The results show that: the location optimization(area(8)(lower middle)to area(5)(middle))and design optimization(optimization border white flicker)of the stairwell scene are effective;the location optimization(area(8)(lower middle)to area(5)(middle))and design optimization(optimization border white flicker)of the bookshelf scene are effective;the self-study area field is effective Scene design optimization(optimization border white flashing),the optimization scheme is effective;aisle scene design optimization(optimization border white flashing),the optimization scheme is effective.Then it puts forward some suggestions on other optimization directions of evacuation signs in university library,in order to comprehensively optimize the evacuation signs and emergency evacuation system in university library.