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Large-scale mobile radars are still erected manually by using lifting equipment, which often fails to meet the requirements on precision, quality and efficiency in the erecting process. This paper aims to introduce techniques for automatic assembly of large mobile radar antenna.

A large-scale metrology system for accurate identification of the positions and orientation of the radar antenna components is presented. A novel three-degree-of-freedom parallel mechanism is designed to realize orientation adjustment of three axes synchronous, and, thus guarantees the efficiency and accuracy of positioning process.

The system described in this paper is practicable in outdoor environment and provides a holistic solution that gives full consideration of the operation conditions and the environmental influences. In performance evaluation tests, the measured absolute accuracy is less than ±1 mm and repeatability is less than ±0.5 mm in the positioning task for 10 × 3 m large antenna.

This paper presents a new concept of an automatic assembly technology for the large radar antenna application.

The research examines the impact of heavy rail transport infrastructure on residential property prices in Melbourne at different stages of project development using the Mernda Rail Extension Project as a case study.

A difference-in-difference approach is used to quantitatively measure the magnitude of change in the house price at different stages of rail transport infrastructure project development.

When controlling for a range of structural, neighbourhood, and locational attributes, the authors find that properties within 800 m from the proposed train station are 8.7% higher in value than those outside 800 m (but within 1,600 m). However, during the project's construction, the project's benefits in the form of house price appreciation are not fully realised. “Unrealised benefit” is attributed to the negative externalities of construction works and apprehensions associated with the project's shelving and time delays.

Depending on the availability of data on residential property transactions in the future, a spatial analysis of rail infrastructure's radius of catchment effect is needed.

Findings from this research are beneficial for policymakers concerned with transport and land use planning, property valuation for taxation and mortgage purposes.

This research contributes to the knowledge of the impact of the rail project on house prices in Melbourne. While there are earlier studies on the topic, there is limited understanding of this prime Australian city attractive to domestic and foreign investors.

This study aims to quantitatively review previous empirical studies on leadership style and safety culture using meta-analysis and identify the most influential leadership style across organizations. Further, the moderating effect of riskiness in the organizational process on the relationship between leadership style and safety culture was also done.

The authors conducted a systematic literature review and applied meta-analysis based on 24 empirical studies to calculate the effect size for the relationships between leadership style and safety culture.

A substantial effect size between leadership style and safety culture (r = 0.50). It was interesting to note the significant relationship between leadership and safety culture, irrespective of high- and low-risk organizations. Moreover, empowering leadership style (r = 0.60) emerged as the most influential leadership style across all organizations and in high-risk organizations.

The meta-analysis established leadership as an essential antecedent of safety culture and suggests implications for future research and practice related to safety and leadership.