Impact of Road Humps on the Pavement Surface Condition

Abstract

In order to fight against over-speeding, the government and people in Egypt resorted to the installation of speed humps without adequate studies. On this basis, speed humps became widespread in most of the Egyptian roads in a semi-random way. It has been observed that the pavement condition of the roads has deteriorated in the vicinity of these humps. For impact assessment of speed humps on the pavement condition index (PCI), three roads link Kafr El-Sheikh city with three major towns in Kafr El-Sheikh governorate were selected to conduct PCI survey. The results indicated that the presence of speed humps contributes greatly to reduce the pavement condition index (PCI) values. It should be mentioned that the average reduction in PCI values ranged between 15% and 22% due to the presence of speed humps. Also, the most frequently observed distress on the pavement sections including humps considered for the selected roads was Raveling and Rutting. Accordingly, to avoid the pavement defects at the locations where the speed humps are installed, it is proposed to study the structural section of the road in the vicinity of the speed hump to resist the braking force and speed reduction effect.

Design and Construction Aspects of Concrete Block Paved Vertical Traffic-Calming Devices Located in Home Zone Areas

“…Summing up, we may state that similar analyses are scarce in the available publications. Examples of similar analyses can be found in [10,23,32,33,35], yet they are hardly comparable with this study's results due to the different vertical traffic-calming device siting and geometrical parameters. With regard to horizontal forces, we can compare only the accelerations and declarations given in Table 3 with the study results published in [23].…”

“…These include the number of lanes, whether a horizontal section is straight or curved, the number of intersections, traffic conditions, longitudinal grade and, of course, the expected type of traffic (only passenger cars, with the possible traffic of commercial and municipal vehicles or public transport vehicles). Most studies deal with vertical traffic-calming devices surfaced with asphalt layers and located on asphalt paved streets [7,11,12,22,23,32,33]. Previous research focused mainly on the effectiveness of vertical traffic-calming devices in reducing vehicular speed in various vertical traffic-calming device designs and speed configurations.…”

“…However, relatively little research has been devoted to the impact of vertical traffic-calming devices on road surfacing conditions. The few examples worth mentioning include [7,[31][32][33]48]. These studies consider mainly the impact of specific geometric parameters and the scenario of speed humps' arrangement along the street on the condition of the pavement in question.…”

Comparative Study of Utilising Neural Network and Response Surface Methodology for Flexible Pavement Maintenance Treatments

“…Thus, the diagnosis of pavement distress requires a considerable amount of engineering judgment, and this skill is scarce, particularly for the maintenance of flexible pavements in Malaysia and other tropical regions [5,6]. The performance of mechanistic-based pavement structures is dependent on the precision of the used mechanistic variables [7,8]. Experience in treatment maintenance differs substantially among highways agencies all over the world [9].…”