Applications of building information modelling for planning and delivery of rapid transit

Rapid-transit systems, commonly referred to as metros or subways, offer a cost-effective and sustainable solution to tackle modern-day problems of urban congestion. However, the planning, design, construction, operation and maintenance of rapid-transit networks pose monumental challenges to civic authorities. Building information modelling (BIM) offers numerous opportunities to leverage the benefits of three-dimensional modelling and four-dimensional simulations to plan and manage construction of these facilities alongside existing operations. Post-construction and commissioning, the BIM model can then be used to operate and maintain the facility more efficiently through integration with asset-monitoring systems. The use of BIM for transit infrastructure is in its early stages and is far from being standardised. This paper attempts to provide a preliminary overview that can form the basis for a more detailed review of BIM applications relevant to rapid-transit schemes during different phases of project delivery. The paper briefly lists examples of BIM applications used by metro management companies, design and construction firms, and by construction software vendors.