The assessment of road geometry parameters on low-volume roads in Lithuania

The Gravel Roads Paving Program has been started since 1998, however, it was determined that after reconstruction 4.7% of gravel road sections became potentially dangerous. One of the main disadvantages of this program was a slightly changed or entirely unchanged horizontal alignment of roads. During the reconstruction the road pavement was strengthened, and the gravel surface was replaced with asphalt pavement. This enabled the speed limit to be increased, but based on design rules the design speed remained unchanged. Investigation of the horizontal alignment of 30 regional roads was carried out in order to assess compatibility of the horizontal alignment elements and their correspondence to traffic safety. It was determined that compatibility of the horizontal alignment elements was fair, and the calculated operating speed was 10–20 km/h higher than the design speed. It was also determined that compatibility of the horizontal alignment elements of low volume roads in most cases was fair. Dynamic consistency of roads was poor. Analysis of vertical alignment showed that the stopping sight distance met the requirements in all the elements of vertical alignment, whereas the passing sight distance met the requirements only in 8.2% of all elements where the design speed equaled 70 km/h.

• Availability:
  • Find a library where document is available. Order URL: http://www.piarc.org/en/order-library/13949-en-Proceedings%20of%20the%20XXIVth%20World%20Road%20Congress,%20Mexico%20-%202011.htm
• Supplemental Notes:
  • Abstract reprinted with permission of the World Road Association – PIARC.
• Corporate Authors:

  World Road Association (PIARC)

  La Grande Arche, Paroi Nord, Niveau 5
  F-92055 La Defense Cedex,   France 
• Authors:
  • Zilioniene, D
  • Vorobjovas, V
  • Vaitkus, A
• Conference:
  • 24th World Road Congress
  • Location: Mexico City , Mexico
  • Date: 2011-9-26 to 2011-9-30
• Publication Date: 2011

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: 14p
• Monograph Title: 24th World Road Congress Proceedings: Roads for a Better Life: Mobility, Sustainability and Development

Subject/Index Terms

• TRT Terms: Alignment; Design speed; Geometric design; Highway safety; Low volume roads; Operating speed
• Geographic Terms: Lithuania
• Subject Areas: Design; Highways; Safety and Human Factors; I22: Design of Pavements, Railways and Guideways;

Filing Info

• Accession Number: 01505812
• Record Type: Publication
• ISBN: 2840602679
• Files: TRIS
• Created Date: Jan 27 2014 11:31AM