SPEED REDUCING MEASURES

FARTDEMPENDE TILTAK

This report contains a survey of different kinds of speed reducing arrangements. The focus is on geometric design and the effects for different kinds of road users and maintenance. Bumps, both circular and flat, reduce the vehicle speeds considerably. To keep the speeds low, the distance between the bumps should not exceed 50-75 M. It is an advantage to cyclists and simplifies the drainage, if a passage is left between the bump and the kerbstone. Otherwise it is normally necessary to build new gutter inlets. The bump can be cleared of snow with ordinary machines. It is also possible to reduce the vehicle speeds by reducing the width of the carriageway. The best result is obtained if the carriageway is designed in a zig-zag pattern. This design, however, makes the snow clearance more difficult. Rumble strips have only a small effect on vehicle speeds. They can be used to warn a driver of difficult spots. It has been the purpose to describe a wide variety of case studies in this report. The effects of the measures are different and more or less verified. (TRRL)

• Corporate Authors:

  Nordisk Vegteknis Forbund

  Utvalg 22
  Borlaenge,   Sweden 
• Publication Date: 1981

Language

• Swedish

Media Info

• Features: Figures; Photos; References; Tables;
• Pagination: 119 p.

Subject/Index Terms

• TRT Terms: Bottlenecks; Design; Geometric design; Hazards; Highway maintenance; Maintenance; Motor vehicles; Obstructions (Navigation); Reduction (Chemistry); Residential areas; Rumble strips; Speed; Speed control humps; Speed limits; Surface drainage; Traffic speed; Width
• Uncontrolled Terms: Bumps; Reduction (Decrease)
• Geographic Terms: Denmark; Finland; Norway; Sweden
• Old TRIS Terms: Highway drainage; Reduction
• ITRD Terms: 630: Bottleneck; 1243: Car; 8513: Classification; 8525: Conference; 8623: Data acquisition; 9009: Decrease; 8028: Denmark; 9011: Design (overall design); 1772: Driver; 8035: Finland; 2755: Highway; 2885: Layout; 3847: Maintenance; 8084: Norway; 1644: Obstacle; 6969: Recording; 307: Residential area; 551: Road stud; 2849: Rumble strip; 5408: Speed; 2833: Speed control (struct elem); 624: Speed limit; 8109: Sweden; 6949: Television; 313: Urban area; 6479: Width
• Subject Areas: Design; Highways; Maintenance and Preservation; Operations and Traffic Management; Safety and Human Factors; I73: Traffic Control; I85: Safety Devices used in Transport Infrastructure;

Filing Info

• Accession Number: 00367053
• Record Type: Publication
• Source Agency: Swedish National Road and Transport Research Institute (VTI)
• Report/Paper Numbers: N5: 1981 Monograph
• Files: ITRD, TRIS
• Created Date: Nov 30 1982 12:00AM