American Society of Civil Engineers

Requirement and Availability Time-Window Analysis of Intermediate Function

by Yuanbin Song, (corresponding author), (Lecturer, School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong Univ., Shanghai, China 200240. E-mail: and David K. H. Chua, M.ASCE, (Associate Professor, Dept. of Civil Engineering, National Univ. of Singapore, 10 Kent Ridge Crescent, Singapore 119260. E-mail:

Journal of Construction Engineering and Management, Vol. 137, No. 11, November 2011, pp. 967-975, (doi:

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Document type: Journal Paper
Section Heading: Information Technologies
Abstract: Many existing resource-constrained scheduling tools may be inadequate for representing and evaluating intermediate functions, a major category of construction requirements, with respect to availability time-windows and alternative construction sequences. This study develops a time-window analysis approach for calculating and matching the requirement and availability time-windows of an intermediate function. Consequently, the proposed analysis approach can facilitate planning engineers to formally detect unfulfilled construction requirements residing in a construction schedule. Moreover, the analysis tool can also be used for accommodating alternative construction sequences to work out better construction schedules, which is demonstrated and validated by using the case of constructing a nursing house.

ASCE Subject Headings:
Construction management
Time factors

Author Keywords:
Construction requirement
Resource-constrained scheduling
Construction sequence
Precedence relationship
Intermediate function