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Dimensionerande körfältsbredder - Slutrapport

Berntman, Monica LU ; Jonsson, Thomas LU ; Anna, Anund; Ekdahl, Peter LU and Harmannus, Menninga (2012) In Bulletin 271 / 3000 271.
Abstract
This report presents the results from a study of 90 km/h rural roads, where the effects of narrow vs. wide lanes on deterioration, safety, winter maintenance etc have been studied. Empirical studies have been performed of lateral positioning and speed on 16 road objects that vary with regards to lane width (3.25m respectively 3.75m) and presence of guardrail (with or without), other parameters have been kept unvarying. The effect of oncoming traffic on lateral positioning has also been studied. The effect on winter maintenance has been

studied through surveys to contractors. Results show that narrow lanes, in comparison to wide lanes, reduce the life span of the road by 10-15%, and leads to a higher lifecycle cost on the whole.... (More)
This report presents the results from a study of 90 km/h rural roads, where the effects of narrow vs. wide lanes on deterioration, safety, winter maintenance etc have been studied. Empirical studies have been performed of lateral positioning and speed on 16 road objects that vary with regards to lane width (3.25m respectively 3.75m) and presence of guardrail (with or without), other parameters have been kept unvarying. The effect of oncoming traffic on lateral positioning has also been studied. The effect on winter maintenance has been

studied through surveys to contractors. Results show that narrow lanes, in comparison to wide lanes, reduce the life span of the road by 10-15%, and leads to a higher lifecycle cost on the whole. When faced with an oncoming vehicle the driver carries his vehicle farther away from the centerline, on average 2 to 30 cm depending on the situation and road design. No difference in accident risk has been observed between the two widths. An increased width results in higher demands on winter maintenance, but the effects are small compared to other influencing factors. (Less)
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author
organization
publishing date
type
Book/Report
publication status
published
subject
keywords
trafikantbeteende, körfältsbredd, sidoläge, vinterväghållning, vägkonstruktion, nedbrytning, trafiksäkerhet, hastighet, road user behaviour, lane width, lateral position, winter maintenance, pavement, deterioration, traffic safety, speed
in
Bulletin 271 / 3000
volume
271
pages
120 pages
publisher
Lunds universitet, LTH, instutionen för teknik och samhälle, trafik och väg
ISSN
1653-1930
language
Swedish
LU publication?
yes
id
c509ac3f-b533-4f45-974a-99595f15ec95 (old id 2376064)
date added to LUP
2012-03-23 11:56:38
date last changed
2016-04-16 02:43:09
@techreport{c509ac3f-b533-4f45-974a-99595f15ec95,
  abstract     = {This report presents the results from a study of 90 km/h rural roads, where the effects of narrow vs. wide lanes on deterioration, safety, winter maintenance etc have been studied. Empirical studies have been performed of lateral positioning and speed on 16 road objects that vary with regards to lane width (3.25m respectively 3.75m) and presence of guardrail (with or without), other parameters have been kept unvarying. The effect of oncoming traffic on lateral positioning has also been studied. The effect on winter maintenance has been<br/><br>
studied through surveys to contractors. Results show that narrow lanes, in comparison to wide lanes, reduce the life span of the road by 10-15%, and leads to a higher lifecycle cost on the whole. When faced with an oncoming vehicle the driver carries his vehicle farther away from the centerline, on average 2 to 30 cm depending on the situation and road design. No difference in accident risk has been observed between the two widths. An increased width results in higher demands on winter maintenance, but the effects are small compared to other influencing factors.},
  author       = {Berntman, Monica and Jonsson, Thomas and Anna, Anund and Ekdahl, Peter and Harmannus, Menninga},
  institution  = {Lunds universitet, LTH, instutionen för teknik och samhälle, trafik och väg},
  issn         = {1653-1930},
  keyword      = {trafikantbeteende,körfältsbredd,sidoläge,vinterväghållning,vägkonstruktion,nedbrytning,trafiksäkerhet,hastighet,road user behaviour,lane width,lateral position,winter maintenance,pavement,deterioration,traffic safety,speed},
  language     = {swe},
  pages        = {120},
  series       = {Bulletin 271 / 3000},
  title        = {Dimensionerande körfältsbredder - Slutrapport},
  volume       = {271},
  year         = {2012},
}