To reduce potential pedestrian fatalities, in residential road maximum speed is 30km/hour. Apart from installing maximum speed signs, installing road humps may ensure speed reduction. This paper is intended to compare light vehicles and motorcycles speeds and speeds reductions due to road humps. Data collection was done in Modernland, Tanggerang City. Two road segments were observed, i.e. segments with standard and non-standard road humps. Observation was made in morning, noon and afternoon periods. A portable speed gun was used to measure the speed at about 50m and 25m before the road humps. Some mean difference statistical analyses were conducted for both speeds and speeds differences between different type of road humps and between pairs of observation periods. The 0.05 significant level was used. Surprisingly, mean of speeds differences (50m vs 25m) in standard road hump is significantly higher than in non-standard road hump.

The construction industry is recognized as having inherent risks with high levels of change and uncertainty. The complexity of this project poses a challenge to traditional safety management approaches. As an alternative, a resilience approach to traditional safety management is used, which is designed to deal with uncertainty in a high-risk work environment in the form of a resilience safety culture. This research will look at the relationship between resilience safety culture variables, and safety performance in a stateowned construction company in Indonesia using the partial least squares structural equation modeling approach. Resilience safety culture variables in this study include management commitment, reporting, learning, anticipation, flexibility, awareness, coworker's safety perception, supervisor's safety perception, safety attitudes, understanding of risk, safety resources, and safety procedures. The results of the PLS-SEM test show that there are 9 relationships between variables that have a significant positive influence. As a significant variable that has a direct effect on safety performance, awareness is the main determining factor for improving the company's safety performance. With the significant influence of safety awareness on safety performance, there is a need to increase safety awareness to ensure consistent improvement in safety performance. It is recommended for companies to be able to increase safety awareness, one of which is through safety awareness workshops as a way to improve safety performance. The provision of this workshop is an initiative to increase the ability to anticipate and manage risk proactively which can result in an increased level of awareness of hazards and provide a deeper understanding of safety at work sites so that appropriate preventive measures can be taken to reduce the possibility of accidents or unwanted incidents. These results are expected to be used as a guideline for companies in increasing their safety performance.