Paper Title
Optimization of Cost of a Tram through the Integration of BIM: A Theoretical Analysis

Abstract
Building a common transport in own site is a heavy investment. The average cost of a tram (French type) is 24 million euros per kilometer of track. More researches are interested in the optimization of this cost to allow small towns to equip themselves with this means of transport, but also to large metropolises in the South with very limited means. This is in order to respond to the major urban transport problems and the reduction of greenhouse gases. We have discussed in previous articles the integration of BIM into railway projects [1] and we have dealt with a case study [2].In this paper we will study the cost structure of a tram throughout the life cycle. We will then proceed to a theoretical analysis of the optimization that the Building Information Modeling BIM can bring to the cost of a tramway project.We will also highlight in this paper the results of research on the integration of BIM into railway projects by showing the benefits and trends of adoption. This study hopes to open the door to industrial applications and promote the integration of BIM in tram projects. During the discussion of the results, we will propose future research tracks in this theme, including the possibility of studying a real case. Keywords - Building Information Modeling, Tramway, cost, optimization, integration, BIM.