Scheduling of Repetitive Construction Processes With Concurrent Work of Similarly Specialized Crews

Abstract

The highest degree of construction works harmonization can be achieved when planning a repetitive project with processes replicated many times in work zones of identical size. In practice, structural considerations affect the way of dividing the object under construction into zones differing in terms of scope and quantity of works. Due to this fact, individual processes are being allotted to different non-identical zones. Most methods intended for scheduling repetitive processes were developed with the assumption that the work zones are identical and that a particular process cannot be concurrently conducted. To address this gap, the authors put forward a mathematical model of the problem of scheduling of repetitive processes that are repeated in different work zones with the following assumption: several crews of the same type are available, thus particular process can run simultaneously in different locations. The aim of optimization is minimizing the idle time of all crews under the constraint of not exceeding the contractual project duration. The proposed mixed binary linear programming model can be solved using software available in the market or developed into a dedicated system to support decisions. To illustrate the benefits of the model, an example of scheduling interior finishing works was provided.

Resource Levelling in Repetitive Construction Projects With Interruptions: An Integrated Approach

“…Network-based techniques, such as CPM (critical path method), have traditionally been used for planning, scheduling, and monitoring construction projects since the late 1950s (Ammar, 2020). Despite the wide applications of CPM, it fails to schedule repetitive construction projects due to the following shortcomings: (1) CPM requires a large number of nodes to represent a repetitive construction project; (2) CPM cannot demonstrate the production rate of activities; (3) CPM does not ensure resource continuity (Long & Ohsato, 2009;Altuwaim & El-Rayes, 2018a;Jaskowski & Biruk, 2020). Therefore, many more practical scheduling techniques have been developed for scheduling repetitive construction projects, such as Line of balance (LOB) (Arditi et al, 2001), linear scheduling method (LSM) (Harmelink & Rowings, 1998;Rogalska & Hejducki, 2007), and production scheduling method (PSM) (Lucko, 2008).…”

Delay factors in the construction of irrigation and hydropower projects in Vietnam

“…Many authors, such as Chan (1997) [6], Al-Ghafly (1999) [7], Al-Momani (2000) [8], Iyer and Jha (2005) [9], Sadi and Sadiq (2006) [10], El-Razek et al (2008) [11], Al-Kharashi and Skitmore (2009) [12], Olawale and Sun (2010) [13], Chang et al (2011) [14], Geraldine (2012) [15], Lee et al (2013) [16], Ramanathan (2018) [17] focused their research on the subjects and listed more than 100 factors that can affect the construction progress. Other scholars turned their interest into technical problems that cause delays in construction [18]. For instance, rework is responsible for the delay that averages 22% of scheduled time [19].…”

Optimal Planning of Hotel Renovation Projects

“…Available related research studies focused on: (1) investigating the impact of renovation on hotels performance [2][3][4][5][6][7][8][9][10][11][12], (2) improving the planning of renovation work in existing buildings [13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29], and (3) optimizing the planning of repetitive construction projects [30][31][32][33][34][35][36][37][38][39].…”