A Comparison Between The (Design-Build DB) and (Design-Bid-Build DBB) Approaches Used in the Jordanian Construction Sector and Clarify the Risks Associated with Each Approach

The continual need for building in developing economies and countries such as Jordan increases the obstacles and problems faced by Project Management Units in completing projects on time, with quality assurance, and at lower prices. However, as more and more new types of project management approaches such as (Design-Bid DB) are introduced, the binding conditions of contracts are growing tougher in order to reduce risks during project execution. In this paper, the researcher tries to provide a fair comparison between (Design-Bid-Build DBB) and (Design-Build DB) approaches which are already used in the construction project in Jordan and offering a good vision for both owners and contractors equally

Public–Private Partnership and Social Equity: An Empirical Study of the Disadvantaged Business Enterprise Program

Pushback for public–private partnerships (P3s) comes in part from their purported favoritism toward large firms. However, no study has empirically verified this claim. This paper examined the Disadvantaged Business Enterprise (DBE) program to assess whether delivery methods play a role in the participation of minority- and women-owned firms in federally assisted transportation contracts. A sample of 134 contracts from the US Major Transportation Project Database served as the dataset to run linear regressions. Results revealed that P3 associates with higher DBE goals than design–bid–build (DBB). Plausible explanations include P3 being associated with a larger contract size, more public attention, more potential subcontracting opportunities with design included in the package, and intensified agency desire for greater diversity in DBE subcontracts. Moreover, the delivery method has an insignificant effect on DBE attainment. This paper also introduces the DBE envelope, a radar plot capable of graphically assessing DBE program implementation.

Impact of Characteristics of Design-Bid-Build Delivery System on Construction Project Performance in Nigeria

The study examined the impact of characteristics of Design-Bid-Build (DBB) delivery system on construction industry with a view to enhancing project delivery. A total of 13 DBB distinguishing attributes were obtained via literature review. Primary data were used for this study. Structured questionnaire was administered to consultants and contractors’ personnel in Lagos State, Nigeria. A total of 200 copies of questionnaires were administered and 148 copies which represent a combined response rate of 74 per cent were retrieved. Data were analysed using frequency distribution, percentages and spearman’s rank order correlation. The findings indicated that Construction cost is fixed at contract award (until Change Orders), Design is complete prior to construction award, Relative ease of implementation, Low bid cost and maximum competition, Owner at risk to contractor for design errors and Design and construction are sequential have positive direct effect on cost overrun. This study concluded that characteristics of Design-Bid-Build (DBB) delivery system had significant impact on the expected performance of construction project and recommended that stakeholders should have clear knowledge of unique characteristics of DBB delivery system for successful project execution.

Building high-performing and integrated project teams

PurposeEffective inter-organisational relationships are key to engendering innovation and ensuring the successful delivery of infrastructure projects. Relationship-based contracts are thus widely used to stimulate best-for-project ideals and attenuate the otherwise adversarial relationship that often exists between clients and contractors. This study examines the effectiveness and limitations of a project facilitation model as coaching tool for developing conducive inter-organisational relationships for construction project delivery.Design/methodology/approachThe study adopts a case-study approach using evidence from triangulated data sources of focus group workshops, semi-structured interviews and document analysis.Findings(1) The facilitation model enabled an environment for psychological safety to be developed, which engendered a platform for effective cooperation for problem-solving and achieving quasi best-for-project ideals. (2) The model provides the mechanism to develop team behaviours that support enhanced performance and create an environment less adversarial and more collaborative than traditional contracting.Originality/valueThe novelty of this research is that relationship-based principles have been utilised as part of a traditional design-bid-build contract with lump-sum payment arrangements.