11/7/2023 0 Comments Denver traffic speeds![]() ![]() They can be used as a stand alone measure or in combination with speed humps, raised platforms or road narrowings. Rumble strips may be used as gateway treatment when entering a school zone, LSZ or urban area with a different speed regime. Rumble strips produce a vibration and rattling noise when crossed and draw attention and cause corrective action e.g. Source: Federal Highway Administration – 6. Optical methods to reduce speeding with higher marking density toward the curve or as gateway treatment. Speed should then be subsequently reduced. Treatments with optical markings give a feeling or illusion that the driver is going too fast. Pavement narrowing and chicanes force lower traffic speeds due to required steering and yielding issues. This video may be interesting: 5 minutes of traffic on a Dutch roundabout with bi-directional cycling lanes Additionally, they are self-regulating which works well due to clarity about the right-of-way, lower speeds and a clear wider view. Roundabouts slow traffic at intersections and also make the potential impact angle of vehicles safer in case of crashes. Source: SABRE – Gateway infrastructure treatments in Australia. Gateway infrastructure treatments in the UK. when entering a built-up or residential area, school or increasingly popular Low Speed Zone (LSZ). Gateway treatments indicate a new speed regime from a higher speed or access road e.g. Source: Government of South Australia, Department for Infrastructure and Transport – 2. Raised pedestrian crossing (also with road narrowing) in Hahndorf, South Australia, ![]() Such measures can be highly cost and road safety effective and are relatively inexpensive to implement. This means a strategic review of infrastructure design criteria and infrastructure changes, starting with high-risk locations. ![]() Infrastructure adaptations for speed reductionĪn important measure to reduce speeds is the implementation of traffic calming infrastructure as suggested by Vision Zero and Sustainable Safety road safety strategies. ![]() Governments come in when such clear benefits to society at large need to be secured or promoted, despite perceived restrictions, constraints and limits to freedom felt by the individual. This is hard to convey to the individual speeding driver with the narrow interest when running late for a meeting. the smoking rate and the collective incidence of lung cancer, a small decrease in average vehicle speed across a road network will lead to a considerable reduction in traffic fatalities and the severity of injuries. They serve to maintain awareness by the driving public of the dangers of speeding and the advantages of speed compliance. However, the importance of well-structured traffic and driver education policies, various active and passive signage methods and effective and constant publicity, especially when well-synced with enforcement, should not be underestimated. For this blog we will focus on the direct speed reduction measures. Speed reduction measures fall into the following categories: direct – infrastructure, vehicle technology and enforcement and indirect – signage, education and publicity. Speed reduction thus pays off in numerous ways. Moreover, lower speeds will also facilitate local community spirit, cycling and walking that have wider health benefits for society. These benefits include a reduction in traffic noise, pollution, greenhouse gases, average fuel consumption and barrier effects. However, speed reduction has important additional benefits that increase the quality of life for neighbourhoods and bigger urban areas, but also for society at large. The traditional and important road safety benefits of lower vehicle speeds include saving lives and reducing the impact and likelihood of crashes. ![]()
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