A critical review and comparative analysis of cost management on prefabricated construction research (2000–2022)

Figures & data

Figure 1. Timeline for CMPC.

Figure 2. Three-stage review structure.

Table 1. Search results for keywords.

Keywords	Number of articles in each subject field^1
	S1	S2	S3	S4	S5	S6	Total
Prefabricated building	762	60	58	57	5	8	844
Prefabricated construction	1191	68	68	99	5	9	1287
Precast building	1718	54	33	183	2	7	1789
Precast construction	2299	61	65	93	6	7	2397
Off-site construction	380	58	29	91	9	5	470
Industrialized construction	362	82	88	77	9	21′	517
Industrialized building	365	92	122	108	16	36	598
Building industrialization	276	84	123	64	15	34	493
Construction industrialization	329	114	105	62	15	31	524
Total							7,538

Note: ¹S1 = Engineering; S2 = Environment science; S3 = Social science; S4 = Management; S5 = Decision services; S6 = Economics.

Because there are papers being affiliated to more than one subject, the total number for each keyword is not equal to the sum of papers of all subjects.

Figure 3. Variations in the number of CMPC-related papers (2000–2018).

Figure 4. Clustering structure of document co-citation analysis.

Figure 5. The research work breakdown structure (R-WBS) of current CMPC-related research.

Table 2. Main document co-citation clusters for CMPC-related research.

Cluster ID	Size	Silhouette score	Mean (Year)	Name of the cluster
#0	12	0.870	2011	Precast construction cost
#1	12	0.900	2015	Industrial building
#2	8	0.773	2016	Outsourcing decision
#3	7	0.798	2016	Benefit analysis
#4	2	1.000	2015	Construction management
#5	2	0.952	2016	Modular prefabricated home
#6	1	0.000	2012	Precast concrete floor

Figure 6. Future research directions in CMPC research domain.

Data availability statement

All data, models, and code generated or used during the study appear in the submitted article.