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Constructive Thoughts for the Day

 

 Some Observations on the Three-Line BTS Construction Project

 

21 August 2006

Dear friends,  

As a preliminary conclusion regarding the three-line Bangkok Transit System (BTS) construction, the interim Government decided that the ‘design-and-build’ approach be used, with the state taking on the responsibility of finding loans while still allowing the private sector to make financial proposals. 

Design and Build is an approach whereby one single contractor is responsible for both design and construction—a relatively new approach increasingly used overseas. However, this approach has both pros and cons compared to the conventional ‘design-bid-build’ method. 

One good aspect of the design-and-build approach is that state agencies are spared from the conflicts and disputes between the architect and the construction contractor, as the latter is also involved in the design. It is also flexible and less time-consuming, with relatively exact construction cost estimation, and does not require too many experts on the part of state agencies.

However, the down side is that its bidding documents often lack details, with few clear criteria for the selection of winner. Quality control is also difficult and smaller contractors are often blocked out.

The Design-Bid-Build approach, on the other hand, requires that a design consultant is hired to look at project details before the bidding process to select contractors starts. Hence, this approach has pros and cons that are opposite to those of the design-and-build approach.

The selection of project implementation approach, therefore, depends on the nature and specifications of each project, the emphasis given to different pros and cons, and the general political situation of the time the project is being implemented.

After having followed the progress of this project all along, I have some observations on the design-and-build approach used in this three-line BTS skytrain project :  

Is it appropriate and suitable?

The most important reason for using the design-and-build approach is the flexibility of implementation. This is because this approach allows the design part to go in parallel with the construction part, which makes it suitable for projects involving rapid technological change. However, the construction time proves to be rather long. This approach is however usually conducive to the use of best technology.

The question is whether or not all parts of the BTS project actually involve rapid change in technology. As a matter of fact, there is only the train system itself that involves rapidly changing technology, while other construction works, such as the building of tunnels and skytrain stations, are unlikely to involve rapid technological change. I therefore agree with the proposal of the National Economic and Social Advisory Council that construction work be separated from the train system work.

My view is that the government should use a combined approach; that is, using specific and detailed design for civil engineering work that has no direct impact on the train system, while allowing more flexibility in train system work which involves rapid change in technology and encouraging competition between different train technologies. However, the draft bidding document for all three train projects turned out to be too loosely specified, even allowing the bidders to propose the BTS routes, the details of which should already have been specified by the government.  

Does it involve too much duplication?

I put up such an observation because the Thaksin I Government approved the design specifics and construction details of the purple-line skytrain (Bang Yai-Ratburana, Bang Yai-Bang Sue) in 2003. To implement this project, the Mass Rapid Transport Authority of Thailand (MRTA) used up to about 300 million baht in hiring a consultant on project details and feasibility, project design, and project bidding.

            The question is, as the detailed design and bidding documents of the purple-line train have already been made available, then why the Government still used the design-and-build approach that would duplicate the work already implemented. Doesn’t this constitute an unreasonable waste of national budget?

 Is it transparent?

The bidding document outlining the terms of reference is very broad and allows bidders to propose specific details of the construction in an excessively flexible manner. There are no clear criteria for the selection of bidders. The decision-making, however, depends on the discretion of a committee set up by the Government, causing public concerns about the transparency of the entire process. 

Moreover, the major down side of the design-and-build approach is that it may decrease the ability of contractor to supervise design and quality control of the project. This approach also allows very limited public participation in the project design phase, thereby presenting risks and uncertainties concerning the quality of the construction and the possible kickbacks to the contractor of the three-line mass transit project.

Most importantly, the fact that the Government decided to allow bidding contest for the project not only generates criticism about the propriety of an interim Government creating binding commitment that would impact on the next Government, but also accusations about the Government’s conflicts of interest. Scandals have it that the Government tried to implement the project in haste when there was no functioning Parliament to scrutinize the plan, while citing people’s needs and the oil price to justify the decision. It should come as no surprise that some sections of the populace cast serious doubts on the project’s transparency.

Although the desing-and-build approach is based on good principle, the use of this method requires the Government to consider each project on a case-by-case basis. It also requires the government to ask itself if its current status allows it to appropriately implement this project using this approach.

  

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