3.5 Discussions

et al (2018) material supply channels in construction for optimizing Material Supplies

Hsu et al (2018)

Lin et al (2018) Logistics Planning for modular construction

Robust optimization for sustainable CSC Demand variations, weather conditions, delivery delay labor productivity, crane status, assembly patterns Cost, duration and carbon emission

Rahimi and Ghezavati (2018)

Feng et al (2018) Designing and planning reverse logistics network for recycling construction and demolition wastes Optimization for integrated productiondistributionconstruction system in CSC Demand, rate on investment

Costs, supply time, demand, material quantity Two stage stochastic programming Model

Bi-level programming model based on robust optimization

Multi-period Multi-objective model

Bi-level multistage programming model

Deng et al (2019) Developing an integrated framework for CSC optimization using BIM and Not mentioned Technologybased (BIM and GIS) optimization model mentioned level: focusing on the optimization of inventory management cost

Not mentioned Operational level: focusing on the optimization of cost related to manufacturing, storage and assembly

Owner and GC

Not mentioned Focusing on defferent SC level: environmental, social and commercial goals Focusing on different SC level: environment impact, social effect and network profit

GC Tactical level: focusing on the optimization of transportation duration and costs related to inventory, transportation and shortage GC Focusing on different SC levels: supplier selection, determination of delivery

GIS

This Thesis Developing the optimal plan for CSC operations with TPL partnership Material prices, delivery leadtimes, and daily demands Mixed integer programming model for the optimization of CSC with the participation of TPL provider quantity and allocation of consolidation centers TPL provider Operation level: focusing on the optimization of logistics costs related to procurement, transportation and storage for two material types.

3.3 Research gaps and objectives

As introduced above, ongoing investigations in the writing have endeavored to foster different dynamic models to work with the streamlining for CSC at various SC levels (vital, strategic, operational, and blended). In spite of their critical commitments to the assortment of information in development the board, the current investigations actually have the accompanying impediments:

• An enormous extent of existing investigations in development co-ordinations and SCM center around the computation or streamlining of co-ordinations costs identified with material buying, transportation, and capacity. In any case, the majority of the examinations disregard the central part of the SC driver, who is liable for planning the whole SC organization and coordinating the association of important SC entertainers.

• Although some past examinations affirm the advantages of the work of TPL answer for development co-ordinations, there is an absence of study fostering the advancement model for development co-ordinations with the association of TPL supplier as the SC driver.

• There is additionally an absence of study fostering the ideal arrangement for the incorporated CSC activities, which considers various sorts of materials shipped straightforwardly to the building site or passed on to the transitional stockroom because of the project workers' requests, material costs, and the transportation expenses offered by providers.