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This paper is concerned with identifying universal criteria for prequalification and bid evaluation, and the means by which different emphases can be accommodated to suit the requirements of clients and projects. The information, assessment and evaluation strategies currently used by procurers for screening contractors are considered, and the results are reported of an extensive literature review and a Delphic interview study with a small select sample of construction professionals with extensive experience in prequalification and bid evaluation processes. The findings indicate that the most common criteria considered by procurers during the prequalification and bid process are those pertaining to financial soundness, technical ability, management capability, and the health and safety performance of contractors.Prequalification, Bid Evaluation, Information, Criteria Assessment,

A Delphic study investigating the perceived relationship between 20 contractor selection criteria (CSC) currently in use and project success factors (PSFs) in terms of time, cost and quality is described involving a sample of eight experienced construction personnel, including two validators. A consensus of the likely impact of each criterion on time, cost and quality is established in terms of pessimistic, average and optimistic values, which are then converted into expected means and variances via the PERT approach. The ten most and ten least important CSCs are identified and examined for differences and similarities between PSFs. The results show that past failures, financial status, financial stability, credit ratings, experience, ability, management personnel and management knowledge are perceived to be the dominant CSCs affecting all three PSFs, with safety criteria (safety, experience modification rate, OSHA incidence rate, management safety accountability) and the length of time in business being perceived to have the least effect overall. Some CSCs, such as past performance, bank arrangements, project management organization, plant and equipment were perceived to affect only one or two PSFs.Prequalification, selection criteria, project success factors, Delphic study,

A methodology for assessing and evaluating contractor data for the purpose of prequalification and bid evaluation is presented. The PERT approach is used to develop a linear model for the assessment of contractor data. The model incorporates a multiple ratings permitting the uncertainty in contractor data to be evaluated. An empirical study investigating the importance of different contractor criteria is described. A lexicographical ordering with aspiration levels and risk analysis with sensitivity methods are used to evaluate and select or rank-order contractors against the main client goals of time, cost, and quality. A literature review is reported regarding client goals and current evaluation strategies. The assumptions, advantages and disadvantages of this work as well as an example are also presented.Prequalification, Bid Evaluation, Pert, Criteria, Client Goals, Contractor, Data,

In the Libyan construction industry, the supervising engineer plays an important role in checking time schedules and protecting the client from delays and associated claims but there is no existing means of determining their proficiency in performing this task. A list of factors identifying a broad range of characteristics and skills necessary for the effective supervision of construction projects is compiled. A field survey comprising semi‐structured interviews and questionnaires with 32 client and contractor project managers experienced in the Libyan construction sector is undertaken. The responses are used to develop a method of assessing the effectiveness of supervising engineers in dealing with construction project delays through a set of weighted criteria which are scored according to currently perceived levels of performance. The results indicate that Libyan supervising engineers are currently deficient in a number of areas, particularly communication skills (33%); obtained scientific, technical and legal knowledge (34%); knowledge in dealing with claims (36%); previous experience (37%); knowledge and use of modern techniques (37%). These factors are therefore a key focus for the professional development needs of supervising engineers and the method of assessment should assist clients in the process of selection and appointment