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Ahn, S, Crouch, L, Kim, T W and Rameezdeen, R (2020) Comparison of Worker Safety Risks between Onsite and Offsite Construction Methods: A Site Management Perspective. Journal of Construction Engineering and Management, 146(09).

Al-Bayati, A J and Panzer, L (2020) Reducing Damages to Underground Utilities: Importance of Stakeholders’ Behaviors. Journal of Construction Engineering and Management, 146(09).

Ariyachandra, M R M F and Brilakis, I (2020) Detection of Railway Masts in Airborne LiDAR Data. Journal of Construction Engineering and Management, 146(09).

  • Type: Journal Article
  • Keywords: Geometric digital twin (gDT); Point cloud data (PCD); Rail infrastructure;
  • ISBN/ISSN: 0733-9364
  • URL: https://doi.org/10.1061/(ASCE)CO.1943-7862.0001894
  • Abstract:
    Generating an object-oriented, geometric digital twin of an existing railway from its point cloud data (PCD) is a laborious task, needing 10 times more labor hours than scanning the physical asset. The resulting modeling cost counteracts the expected benefits of the twin. This cost and effort can be reduced by automating the process of creating such models. The first perceived challenge to achieving such automation is detecting masts from airborne light detection and ranging (LiDAR) data because their position and function (separating substructure from superstructure) is critical to the subsequent detection of other elements. This paper presents a method that tackles the aforementioned challenge by leveraging the highly regulated and standardized nature of railways. In railway infrastructure, the geometric relations of a unit contain overhead line equipment (OLE) between two mast pairs are consistent and repetitive throughout the track. The proposed method starts with tools for cleaning the PCD and roughly detecting its positioning and orientation. The resulting data sets are then processed by restricting the search region of the masts considering its positions compared with the track centerline. Subsequently, the masts are detected using the Random Sample Consensus (RANSAC) algorithm. The final deliverables of the method include the coordinates of the mast positions, detected point clusters and three-dimensional (3D) models of the masts in Industry Foundation Classes (IFC) format. The method was implemented in a prototype and tested on three railway PCDs with a cumulative length of 18 km. The results indicated that the method achieves an overall detection rate of 94%. This is the first method in automatically detecting masts from airborne LiDAR data.

Ballesteros-Pérez, P, Sanz-Ablanedo, E, Cerezo-Narváez, A, Lucko, G, Pastor-Fernández, A, Otero-Mateo, M and Contreras-Samper, J P (2020) Forecasting Accuracy of In-Progress Activity Duration and Cost Estimates. Journal of Construction Engineering and Management, 146(09).

Chen, T, Hu, H and Zhu, F (2020) Developing a Hierarchical Road Layout Method for Large-Scale Construction Site. Journal of Construction Engineering and Management, 146(09).

Dou, Y, Xue, X, Wu, C, Luo, X and Wang, Y (2020) Interorganizational Diffusion of Prefabricated Construction Technology: Two-Stage Evolution Framework. Journal of Construction Engineering and Management, 146(09).

Fan, C (2020) Defect Risk Assessment Using a Hybrid Machine Learning Method. Journal of Construction Engineering and Management, 146(09).

Franz, B, Molenaar, K R and Roberts, B A M (2020) Revisiting Project Delivery System Performance from 1998 to 2018. Journal of Construction Engineering and Management, 146(09).

Gurmu, A T and Ongkowijoyo, C S (2020) Stochastic-Based Model for Setting Formwork-Productivity Baseline. Journal of Construction Engineering and Management, 146(09).

Jazayeri, E and Dadi, G B (2020) Hazard Recognition and Risk Perception Skills among Union Electricians. Journal of Construction Engineering and Management, 146(09).

Kar, S and Jha, K N (2020) Examining the Effect of Material Management Issues on the Schedule and Cost Performance of Construction Projects Based on a Structural Equation Model: Survey of Indian Experiences. Journal of Construction Engineering and Management, 146(09).

Kim, T, Lee, D, Cha, M, Lim, H, Lee, M, Cho, H and Kang, K (2020) Simulation-Based Lift Planning Model for the Lift Transfer Operation System. Journal of Construction Engineering and Management, 146(09).

Love, P E D, Matthews, J and Fang, W (2020) Rework in Construction: A Focus on Error and Violation. Journal of Construction Engineering and Management, 146(09).

Ma, H, Zhang, H and Chang, P (2020) 4D-Based Workspace Conflict Detection in Prefabricated Building Constructions. Journal of Construction Engineering and Management, 146(09).

Moon, H, Kim, K, Lee, H, Park, M, Williams, T P, Son, B and Chun, J (2020) Cost Performance Comparison of Design-Build and Design-Bid-Build for Building and Civil Projects Using Mediation Analysis. Journal of Construction Engineering and Management, 146(09).

Neve, H H, Wandahl, S, Lindhard, S, Teizer, J and Lerche, J (2020) Determining the Relationship between Direct Work and Construction Labor Productivity in North America: Four Decades of Insights. Journal of Construction Engineering and Management, 146(09).

Ogunrinde, O, Amirkhanian, A, Corley, M and Nnaji, C (2020) Effect of Nighttime Construction on Quality of Asphalt Paving. Journal of Construction Engineering and Management, 146(09).

Simmons, D R, McCall, C and Clegorne, N A (2020) Leadership Competencies for Construction Professionals as Identified by Construction Industry Executives. Journal of Construction Engineering and Management, 146(09).

Townsend, R and Gershon, M (2020) Attaining Successful Construction Project Execution Through Personnel and Communication. Journal of Construction Engineering and Management, 146(09).

Xue, J, Shen, G Q, Yang, R J, Zafar, I and Ekanayake, E M A C (2020) Dynamic Network Analysis of Stakeholder Conflicts in Megaprojects: Sixteen-Year Case of Hong Kong-Zhuhai-Macao Bridge. Journal of Construction Engineering and Management, 146(09).

Yap, J B H, Rou Chong, J, Skitmore, M and Lee, W P (2020) Rework Causation that Undermines Safety Performance during Production in Construction. Journal of Construction Engineering and Management, 146(09).

Zhang, Y, Lei, Z, Han, S, Bouferguene, A and Al-Hussein, M (2020) Process-Oriented Framework to Improve Modular and Offsite Construction Manufacturing Performance. Journal of Construction Engineering and Management, 146(09).