Zouein P P, M ASCE A, Shedid D
ISSP: integrated schedule and space planner
Abstract: This paper presents the ISSP system for activity scheduling and site layout planning
under spatial constraints. The importance of tying schedule and layout data has been
established and dealt with extensively in the literature. Many decision-support tools
were developed to assist planners in space scheduling but these were limited to providing
the user with a platform that ties spatial and temporal data in the project and left it up to
the user to decide on positions of resources and schedule adjustments to solve spatial
conflicts that may arise in the process of constructing site layouts over time. The ISSP
system, presented here, provides a graphical user-interactive interface with underlying
layout and scheduling algorithms that construct feasible layout and schedule solutions
under 2-dimensional spatial constraints between resources. The underlying algorithms
optimize positions of resources by minimizing handling and rehandling costs of these on
site. ISSP can also be integrated with existing scheduling and layout planning decisionsupport
tools to enable users to override the system's decisions to reach "usersatisfycing"
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Permission to reproduce these documents have been graciously provided by the Aarhus School of Architecture, Denmark. The assistnace of the editor, Prof. Kristian Agger, is gratefully aprecciated.