Accessibility Evaluation of Industrial Heritage in Third-tier Cities and Enhancement of Reuse Potential:A Case Study based on Panzhihua City
The scientific assessment of the reuse potential of construction industrial heritage from third-tier cities,as well as specific reasonable reuse,is crucial for urban transformation,upgrading,and image creation in third-tier cities.Taking Panzhihua City as a case study,this study builds a comprehensive accessibility evaluation method that combines macro vehicle dealers,meso predestination,and micro perception.A quantitative analysis of the multidimensional accessibility of industrial heritage in the eastern and western regions of Panzhihua City was also conducted.Based on the evaluation results,some pathways to optimize accessibility of industrial heritage and strategies for enhancing the reuse potential from an accessibility perspective were proposed.For vehicular accessibility,the analysis of external accessibility shows that industrial heritages,such as bridges and office parks,have better external accessibility and are particularly concentrated in the Nongnongping,Guaziping,and Hemenkou streets.However,mines have poor external accessibility.The analysis results of the degree of global integration are similar.Office parks and industrial heritage in Nongnongping Street have a relatively high degree of global integration,while mines are still in a disadvantageous position.Concerning walking accessibility,the study found from the assessment of the surrounding local road network density and the degree of local integration of industrial heritage that office parks have good walking accessibility.The high-density walking network and compact walking path structure significantly improve the travel convenience of tourists.On the other hand,mines have poor pedestrian accessibility.For perceptual accessibility,differences in tourists'perception of surrounding roads of different types of industrial heritage were disclosed through a quantitative analysis of objective and subjective comprehensibility.It found that roads,bridges,and office parks have relatively high perceptual accessibility,and tourists have good comprehensibility of the surrounding environment.In contrast,mines have relatively low perceptual accessibility.Walking accessibility exhibits the most significant influence on comprehensive accessibility.Specifically,the degree of local integration and local road network density have the highest weight of influence.Industrial heritages with high comprehensive accessibility are generally in a multi-core series connection along the Jinsha River;however,industrial heritages with a long straight distance to the Jingsha River show relatively low comprehensive accessibility.According to the above multidimensional accessibility analysis,the comprehensive accessibility of industrial heritages in Panzhihua City is mainly affected by walking accessibility.Different types of industrial heritages show significantly different accessibilities.Regarding spatial distribution features,industrial heritages with high accessibility are mainly distributed along rivers and main roads,near resources,and clustered in groups.Specifically,industrial heritages in Nongnongping Street,Guaziping Street,and Hemenkou Street show good accessibility.Based on the analysis of accessibility evaluation results and spatial distribution characteristics,this study proposes specific pathways to optimize the accessibility of industrial heritages and some strategies to enhance the reuse potential of industrial heritages.Firstly,it suggests optimization dominated by walking accessibility with consideration to other dimensions of accessibility.Secondly,different strategies should be implemented in accordance with the reuse mode of existing mature industrial heritages to improve their comprehensive accessibility and enhance their reuse potential.Regions should guide the clustering development of industrial heritages and facilitate the formation of a traffic pattern with internal optimization and external connection.The built comprehensive accessibility evaluation method and the proposed optimization strategies in this study can provide beneficial references to reuse industrial heritages in third-tier construction regions and lay a foundation for further study of the accessibility of industrial heritage.In the future,evaluation indicators should be explored more deeply to meet the needs of high-quality and sustainable urban development in third-tier construction regions.
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