Weighted sums method applied for decision making in improvement towards complete street: a case study in Popayan, Colombia

Abstract

The design of a street must adhere to functionality requirements that ensure the safety and comfort of users. From this perspective, if a street encompasses attributes of safety, inclusivity, sustainability, and resilience, it can be referred to as a complete street. This study presents the application of the weighted sum method for evaluating the conditions of a complete street in the modernization of the road network in Popayán, considering the impact that different alternatives offer to enhance road quality. Prior to implementing this method, a group of experts defined the weight of each attribute of a complete street, and using a compliance checklist, a visual assessment was conducted across four sections in the city. 

The study provides an example of rating a segment within a study section and the economic impact in relation to the benefits of the implemented improvements to achieve complete street functionality. This procedure enables a project manager or public expenditure manager to assess how to enhance the success or integrity of the street before carrying out a public project. The goal of the weighted sum method applied in this scenario is to provide a tool for evaluating the fulfillment of complete street conditions before commencing construction.