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http://hdl.handle.net/1942/20421
Title: | Speed control with and without advanced warning sign on the field: an analysis of the effect on driving speed | Authors: | WILMOTS, Brenda HERMANS, Elke BRIJS, Tom WETS, Geert |
Issue Date: | 2016 | Source: | Safety science, 85, p. 23-32 | Abstract: | Speeding is an important risk factor in road safety and police activities with regard to traffic (safety) are therefore to a large extent focused on tackling this problem. Within this study, researchers from Hasselt University worked together with 3 regional police units to test the effect of two frequently used speed interventions namely a speed control (i.e. stationary police control in an unmarked police car equipped with a mobile radar) with and without an advanced (digital) warning sign alongside the road. The effect of these 2 types of interventions is tested on two road segments of regional roads (with a maximum speed of 70 and 90 km/h), whereby interventions were switched between both roads during the second field experiment. To measure the effect of both methods, the average speed, 85th percentile of speed and odds of drivers exceeding the speed limit were analyzed, mainly by using general linear regression models. Results show for each tested intervention, significant speed reductions during the time that enforcement was in place. Generalizing these results, allows us to conclude that the effect during the speed control with advanced warning sign is larger compared to the speed control only (respectively −4.5 km/h and −2.5 km/h in the V85 speed) and also the continuing effect until one week after the intervention is higher. In the future, we recommend repeating the experiment on more locations, to enhance the reliability and generalizability of the results. To do so, further cooperation between knowledge institutions and field practitioners is advisable. | Notes: | Wilmots, B (reprint author), Hasselt Univ, Transportat Res Inst IMOB, Wetenschapspk 5, B-3590 Diepenbeek, Belgium. brenda.wilmots@uhasselt.be; elke.hermans@uhasselt.be; tom.brijs@uhasselt.be; geert.wets@uhasselt.be | Keywords: | speed enforcement; speed behavior; speed data; mobile radar; advanced warning sign; field experiment | Document URI: | http://hdl.handle.net/1942/20421 | ISSN: | 0925-7535 | e-ISSN: | 1879-1042 | DOI: | 10.1016/j.ssci.2015.12.014 | ISI #: | 000373548700003 | Rights: | © 2016 Elsevier Ltd. All rights reserved. | Category: | A1 | Type: | Journal Contribution | Validations: | ecoom 2017 |
Appears in Collections: | Research publications |
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