This study describes the design and implementation of a web-based infrastructure built on open-source components to enable the computation of accessibility scores. It can be adapted to any form of service provision that is represented as geo-located points. The solution aims to extend previous attempts to measure and analyse geographical accessibility in a web-based environment. This design integrates a new approach for generating the variables required in calculating accessibility scores, while allowing the whole system to potentially remain as an open-source and open-data solution. The design allows accessibility scores to be computed using simultaneously both public and private transport modes, thus presenting a more accurate assessment than that obtained from standard single-mode solutions. The infrastructure is described through a consideration of each fundamental component, demonstrating how travel distances and alternative journeys are generated and applied to the accessibility model. Results produced by the solution enable the comparison of accessibility scores generated from alternative modes of transport and are illustrated using a case study to investigate access to sports facilities in Wales. This demonstrates how the system can be used to guide further investment and the future management of service infrastructure.

中文翻译：

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计算对服务的地理访问：包含多种传输模式的客户端-服务器解决方案的设计

本研究描述了基于 Web 的基础设施的设计和实施，该基础设施建立在开源组件上，以实现可访问性分数的计算。它可以适用于以地理定位点表示的任何形式的服务提供。该解决方案旨在扩展先前在基于 Web 的环境中测量和分析地理可访问性的尝试。这种设计集成了一种新方法来生成计算可访问性分数所需的变量，同时允许整个系统保持作为开源和开放数据解决方案的潜力。该设计允许同时使用公共和私人交通模式计算可达性分数，从而提供比从标准单模式解决方案获得的评估更准确的评估。通过考虑每个基本组件来描述基础设施，展示如何生成旅行距离和替代旅程并将其应用于可访问性模型。该解决方案产生的结果可以比较其他交通方式产生的可达性分数，并使用案例研究来说明威尔士体育设施的可达性。这展示了如何使用该系统来指导进一步投资和服务基础设施的未来管理。该解决方案产生的结果可以比较其他交通方式产生的可达性分数，并使用案例研究来说明威尔士体育设施的可达性。这展示了如何使用该系统来指导进一步投资和服务基础设施的未来管理。该解决方案产生的结果可以比较其他交通方式产生的可达性分数，并使用案例研究来说明威尔士体育设施的可达性。这展示了如何使用该系统来指导进一步投资和服务基础设施的未来管理。