The traditional method of procurement, also known as the “design-bid-build” method, is characterized by a sequential and linear process where the design of the project is completed before the construction is bid out and awarded to a contractor. This method is considered to be the most widely used and well-established procurement method.

Factors that may lead to the use of the traditional procurement method include:

• Familiarity and comfort: The traditional method is well-established and widely used, and organizations and stakeholders may be familiar and comfortable with it.
• Low risk: The traditional method is considered to be low-risk, as the design of the project is completed before the construction is bid out, which reduces the risk of changes and delays.
• Cost control: The traditional method allows for better cost control as the design and construction are separated, and the cost of the project is known with a greater degree of certainty.
• Legal and regulatory requirements: Some laws and regulations may require the use of the traditional procurement method.
• Good fit for simple projects: The traditional method is often a good fit for simple projects with well-defined scope, where the design is well understood, and the risks are low.
• Good fit for projects with low level of uncertainty: The traditional method is a good fit for projects with low level of uncertainty, and with clear and defined scope.

It’s worth to mention that even though the traditional method is widely used, it may not always be the best option for every project. The suitability of the method will depend on the specific circumstances of the project, and other procurement methods may be more appropriate in some cases.