Research On Protection And Renovation Of Traditional Commercial Distrcts Based On Perceptual Evaluation

During the transition from extensive expansion-based development mode to delicate inventory-based development mode in urban development in China,the protection and retainment of cultural heritage and roots have been gradually brought to the agenda.As an important carrier of regional culture,traditional commercial districts carry abundant historical message and cultural connotation,playing an important role in retaining the culture heritage and satisfying modern people’s demand for shopping,leisure and entertainment.However,due to lure of business interests and deviated conception of architects,current protection and renovation of traditional commercial districts faces following problems in the aspects of land scape cognition,users’ spatial behavior cognition,users’ physiological signal and special perception,users’ psychological perception and space of locales: imitation of foreign successful cases in landscape of traditional commercial districts,lack of systematic combing and cognitive appraisal of landscape which result in loss of landscape’s authenticity;failure in targeted quantitative analysis,prediction and evaluation research of physiological and psychological perception,and lack of support by the data about people’s perception of spatial environment which cause poor space experience of users,etc.Given the problems in foregoing aspects,a systematic concept of“people-buildings-environment” is proposed for analysis of landscape cognition,behavior cognition,physiological and psychological perception from each aspect.Based on the multi-aspect perceptive evaluation result,the strategies for protection and renovation of districts are proposed.I.Upon field survey and literature collection,semantic ontology and rough set theory were applied to comb the landscape elements of typical traditional commercial districts and construct a regional landscape database,followed by a discussion on the principle in combination of landscape elements with regional traditional characteristics.II.Based on GNSS technique and behavior observation,the movement and stay of space users in different traditional commercial districts were recorded,after which the correlation between the spatial characteristics and behaviors were discussed.III.Brain wave tests were performed to collect subjects’ physiological perception of commercial districts with different spatial effect and based on their subjective psychological perception obtained using SD method,a discussion was made on the psychological factors and spatial effect related factors that influence the physiological perception.IV.Eye movement tests and SD methods were used to analyze the visual characteristics of different spatial elements of districts and their influencing factors,thus putting forward the strategies to improve the visual effect of spatial elements.V.Based on evaluation result of style cognition and psychological,behavioral and physiological perception,a coupling relationship was established between perceptual evaluation and protection and renovation,thus proposing the strategies for protection and renovation of traditional commercial districts.The specific strategies include: 1)protection and renewal aiming at the inheritance of traditional characteristics;2)protection and renewal aiming at the promotion of space vitality;3)protection and renewal aiming at the improvement of physiological perceived comfort;4)protection and renewal aiming at visual effect improvement.This paper proceeds from the perspective of users’ spatial cognition toward traditional commercial districts,applies scientific and objective evaluation method to construct the flows of perceptual evaluation and established the coupling relationship between perceptual evaluation and protection and renovation.It provides a new thought on protection and renovation of traditional commercial streets and is of great significant to cross-discipline integration in design discipline,establishment of a subjective and objective evaluation system and the “human-oriented” protection and renovation of traditional commercial districts.