Safety effects of speed reducing measures in danish residential areas
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§40 gaders sikkerhed. En analyse af politirapporterede ulykker på danske §40 gader baseret på ulykkestætheder før hhv. efter ændring af gadestatus
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§40 gaders sikkerhed. En analyse af politirapporterede ulykker på 44 §40 gader og 52 kontrolgader baseret pa ulykkesfrekvenser for hhv. efter ændring af gadestatus
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Assessing the safety effectiveness of citywide speed limit reduction: A causal inference approach integrating propensity score matching and spatial difference-in-differences
2022, Transportation Research Part A: Policy and PracticeCitation Excerpt :For example, the raised speed limit was found to increase total crashes (Alhomaidat et al., 2020; Brown et al., 1990; Castillo-Manzano et al., 2019; Cetin et al., 2018; Kockelman et al., 2006; Kockelman, 2006; Kwayu et al., 2020; Rock, 1995; Wong et al., 2005) and fatal or severe injury crashes (Ashenfelter and Greenstone, 2004; Bartle et al., 2003; Baum et al., 1989; Baum et al., 1990; Chang et al., 1993; Farmer et al., 1999; Gallaher et al., 1989; Garber and Graham, 1990; Lave and Elias, 1994; Lopez-Aparicio et al., 2020; Malyshkina and Mannering, 2008; McKnight and Klein, 1990; Ossiander and Cummings, 2002; Patterson et al., 2002; Sayed and Sacchi, 2016; Wagenaar et al., 1990). Of nineteen observational before-after studies on the safety effectiveness of speed limit reduction, 84.21% found that the speed limit reduction would improve safety performance, leading to decreases in total crashes (Fridman et al., 2020; Isaksson-Hellman and Töreki, 2019; Islam and El-Basyouny, 2015; Islam et al., 2016; Mammen et al., 2019; Scharping, 1994), fatal or severe injury crashes (De Pauw et al., 2014; Engel, 1990; Engel and Thomsen, 1992; Finch, 1994; Nilsson, 1990), minor injury or PDO crashes (Grundy et al., 2009; Johansson, 1996; Park et al., 2010), and injury crashes (Elvik, 2013; Li and Graham, 2016). However, inconsistent findings with the aforementioned ones were also concluded in the literature regarding the safety effectiveness of speed limit changes.
Effects of speed humps on vehicle speed and pedestrian crashes in South Korea
2020, Journal of Safety ResearchEffects of 20 mph interventions on a range of public health outcomes: A meta-narrative evidence synthesis
2020, Journal of Transport and HealthCitation Excerpt :Following duplicate removal (n = 2100), 4069 studies were included for title/abstract screening. After initial screening, 117 studies met the eligibility criteria and following full text screening 13 papers reporting 11 studies, met the inclusion criteria (Atkins et al., 2018; Brilon and Blanke, 1993; Brilon and Blanke, 1990; Grundy et al., 2009; Steinbach et al., 2011; Webster et al., 2006; Layfield et al., 2003; Engel Thomsen, 1992; Webster Layfield, 2007; Li Graham, 206; Vis et al., 1992; Owen, 2005; Gaca et al., 2016). Included studies were all European and published 1990–2018: UK (6); Demark (2); the Netherlands (1); Germany (1); and Poland (1).
The effectiveness of installing a speed hump in reducing motor vehicle accidents involving pedestrians under the age of 21
2018, Journal of Transport and HealthEffect of speed hump characteristics on pavement condition
2017, Journal of Traffic and Transportation Engineering (English Edition)Citation Excerpt :Not to be confused with a speed hump, a speed bump is a raised area commonly used in parking and on some private roadways, which is generally from 7.50 to 15.0 cm in height with a length of 0.30–0.90 m in the direction of travel (Ewing, 1999; ITE, 1993). Engel and Thomsen attributed a speed reducing effect of 1 km per hour reduction in driving speed to every centimeter increase in height of the hump (Engel and Thomsen, 1992). Examples of previous studies that examined the effect of speed humps/bumps of different characteristics on the decrease of vehicle speed, including: Antic et al. (2013), Pau and Angius (2001) and Mahdy (2012).