Table 2 Contributions, limitations and research gaps of studies on drone implementation.

From: Investigating barriers to drones implementation in sustainable construction using PLS-SEM

S/no

Studies

Contributions

Research Gap/ Limitations

1

Manzoor et al. 94; Vanderhorst et al. 95

Framework for mitigating construction site accident

There is a prerequisite to discovering safety issues in the construction sector

2

Siraj and Fayek 96; El-Sayegh et al. 97

Comprehensive identification of risk in the building business

Proper response and control of risks/ hazards

Lack of systematic review of literature and content analysis of the existing literature concerning hazard identification. Lack of proper risk management by construction companies

3

McSweeney et al. 98; Delgado Bellamy et al. 99

Detailed assessment/review of safety factors; Dressing Assistance Robot Review

Developed a multi-component toolkit for safety management

Neglects continuous and direct physical human contact

4

Nnaji and Karakhan 100; 101

Technologies for safety and health management in construct ruction; Effective application of quadcopter drones for security and safety monitoring

There is a need to overcome technology implementation barriers and the low adoption of drones in the building business

5

Aghimien et al. 102

PLS-SEM modelling to assess drone use in the construction industry—analysis of automation and robotics adoption impediments

There is a knowledge gap concerning participants’ behavioural intention to use UAV applications

There is a need to explore barriers to automation and the adoption of robotics

6

Balasubramanian et al. 103

New framework for policy development, support and intervention mechanisms

Lack of comprehensive use of Industry 4IR by the construction industry

7

Law 104

Examined drone technology and its effects on the building business

There is a need to address the challenges of initial costs, top management support and operation and maintenance support

8

York et al. 105

Examined potential UAV applications and challenges limiting their implementation

There is a need to improve the processing and collection approaches of big spatial data, especially for larger building projects

9

Almalki et al. 106

This study introduces a low-cost platform for environmental monitoring in smart farming, integrating IoT sensors and UAV technology. This platform enhances crop productivity and farm management by providing real-time environmental data

The study did not explicitly address the mechanisms to protect this data from unauthorized access or breaches

10

Alsamhi et al. 107

The study introduces a blockchain-based framework to enhance the security of multi-drone collaboration during swarm operations. This framework uses blockchain technology as a communication tool to broadcast instructions and secure the consensus achievement process among drones, particularly in the presence of potential security threats like Byzantine drones

While the blockchain framework improves security and consensus in drone swarms, the scalability of this solution in larger and more complex environments remains a challenge. The study suggests that further research is needed to adapt the network design for extensive and heterogeneous drone operations

11

Saif et al. 108

n: The study introduces a novel approach using UAVs integrated with Device to Device (D2D) communications to establish reliable communication links in disaster-stricken areas. This ensures the continuity of emergency communication services despite damaged infrastructure

The system’s effectiveness heavily relies on the stability and availability of UAVs, which adverse weather conditions or technical failures can compromise

12

Aiyetan and Das 109

It systematically identifies critical barriers to drone adoption in construction, such as lack of knowledge, regulatory challenges, and the need for pilot licensing. Also, the paper evaluates strategic measures to overcome these barriers, including government policy formulation, training for competency building, and airspace permissions specifically for construction sites

The research relies on perception data from professionals, who may not fully capture the complex on-ground realities of drone implementation in construction. The study focuses primarily on South Africa and India, which may limit its generalizability to other developing countries with different regulatory and economic environments

13

Aghimien et al. 102

It identifies crucial factors affecting the behavioural intention to use UAVs in construction, including performance expectancy, effort expectancy, social influence, and facilitating conditions. This research applies the Unified Theory of Acceptance and Use of Technology (UTAUT) model, enhancing the understanding of technology adoption in the construction sector

The study is confined to South Africa, which may limit the generalizability of the findings to other developing countries with different socio-economic contexts. The study focuses on behavioural intentions rather than actual usage, which might not fully reflect the real-world challenges and outcomes associated with UAV adoption in construction

14

Liang et al. 110

It provides a detailed overview of the current advancements in UAV technology for construction monitoring and inspection. Also, the study highlights recent technological advancements in UAVs, including different types of drones and sensors used in construction, which enhance safety,

While it addresses these challenges, the study might not provide detailed strategies or solutions for navigating the complex regulatory environments across different regions

15

Yahya et al. 111

The paper provides detailed insights specific to the Malaysian construction industry, enhancing stakeholders’ understanding within this geographic and economic context of how to integrate drone technology effectively

While providing valuable insights into Malaysia’s construction sector, the study’s findings may not directly apply to regions with different regulatory, economic, and technological landscapes. Also, the study primarily utilizes qualitative methods, which, while rich in detail, may not capture the breadth of perspectives that quantitative data might provide

16

Dejonghe 112

This paper identifies specific barriers to drone adoption in construction, such as regulatory issues, technical limitations, and resistance from within the industry

The study might have a limited geographic focus, which could affect the generalizability of the findings to other regions with different regulatory and economic environments. Also, the study may rely more on theoretical analysis than empirical data, which could affect the practical applicability of the recommendations in real-world settings