Modeling a transformational route to infrastructure sustainability in South Africa

Abstract

Purpose

The purpose of this paper is to propose a model for operationalizing the integrated use of lean and sustainability concepts for infrastructure delivery. This model is premised on the need for the attainment of a sustainable built environment through efficient infrastructure delivery.

Design/methodology/approach

A case study research design was used in assessing five purposively selected cases within Gauteng province in South Africa. These facilities attained Green Building Council of South Africa ratings of 5- to 6-star, for the rating of green buildings and available evidence of integration of lean principles at the developmental stage. Questionnaires were administered to project’s role-players and semi-structured interviews were conducted with the users and facility managers, in order to elicit data for the model development. Questionnaire survey was adopted for the model validation.

Findings

The lean-sustainability platform for infrastructure delivery demonstrates features such as resources, drivers, barriers, activities, outputs, the results, and the ultimate impact. The findings give insight into various components of the model. It validates its robustness and highlights leadership among other critical factors necessary for successful operationalization of the lean-sustainability ethos required to transform the delivery of infrastructure.

Practical implications

The developed model provides a transformational route for achieving infrastructure sustainability. The lean-sustainable indicators identified will serve as evaluation tools for assessing lean-sustainability ethos during the delivery phases of infrastructure projects.

Originality/value

The model provides a new way of thinking about infrastructure project delivery regarding the need to promote sustainability in the built environment.

Citation

Isa, R., Emuze, F., Das, D. and Awuzie, B.O. (2018), "Modeling a transformational route to infrastructure sustainability in South Africa", Built Environment Project and Asset Management, Vol. 8 No. 2, pp. 147-159. https://doi.org/10.1108/BEPAM-11-2016-0070