Is safety climate different by project size and activity with different risk levels?

The purpose of this study is to compare the safety climate by project size and construction activity with different risk levels. Accidents tend to occur more frequently at smaller sites. As safety climate has been regarded as one important leading indicator preventing accidents, this study hypothesized that larger project tend to have higher level of safety climate. In addition, this study also hypothesized that labours working for the activities with high level of risk tend to have higher level of safety climate than those for the activities with low level of risk. The hypothesis is related to the theory of homeostasis that humans tend to behave riskier in a situation with low risk and behave less risky in a situation with high risk. This paper presents a research model testing these hypotheses. Literature review about the constructs included in the model and data collection plan are also presented. The test of these hypotheses will contribute to helping practitioners when they establish the plans to increasing the level of safety climate for various projects and activities, which will eventually contribute to better safety performance.