Publications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Impact of reduced conflict intersection on large truck exposure and conflicts
Institute for Transportation at Iowa State University.
Institute for Transportation at Iowa State University.
Institute for Transportation at Iowa State University.
Institute for Transportation at Iowa State University.
2018 (English)Conference paper, Poster (with or without abstract) (Refereed)
Abstract [en]

Rural multi-lane divided highways are generally characterized by higher posted travel speeds and lower density of intersections (which are typically two-way stop controlled). The combination of multiple lanes of high speed traffic, the at-grade access, and driver performance often leads to severe right angle collisions. At-grade intersections along multi-lane roadways present challenging conditions for drivers in terms of judging gaps between high-speed traffic from two different directions separated by a median. Some states have begun to address rural high speed intersection crashes through physically restricting crossing movements (left and thru) which simplifies driver decision making in terms of gap acceptance. These treatments are referred to in Minnesota (a midwestern state in the US) as Reduced Conflict Intersections (RCI). Terms used by other agencies include: Restricted Crossing U-turn (RCUT) and J-Turn. In this paper, we will use the terminology RCI.

An RCI restricts minor road vehicles from making left or through movements. Instead, these vehicles make a right turn and travel a short distance downstream on the major road and then execute a U-turn. Drivers intending to turn left then continue on the expressway and drivers who intended to cross the intersection, then make a right turn. Major road vehicles are prevented from making a left turn. They continue straight to the U-turn location and after executing that movement, turn right at the intended minor street approach. Right turning vehicles in all cases are unaffected.

The main objective of this study was to evaluate large vehicle operational behavior at an RCI compared to traditional non-RCI intersection. Large truck behavior was videotaped and metrics such as exposure time, queuing time, travel time, and conflicts extracted and compared at RCI and control intersections.

Place, publisher, year, edition, pages
Linköping: Statens väg- och transportforskningsinstitut, 2018.
Research subject
X RSXC
Identifiers
URN: urn:nbn:se:vti:diva-12947OAI: oai:DiVA.org:vti-12947DiVA, id: diva2:1204494
Conference
18th International Conference Road Safety on Five Continents (RS5C 2018), Jeju Island, South Korea, May 16-18, 2018
Available from: 2018-05-16 Created: 2018-05-08 Last updated: 2018-05-08Bibliographically approved

Open Access in DiVA

No full text in DiVA

Search outside of DiVA

GoogleGoogle Scholar

urn-nbn

Altmetric score

urn-nbn
Total: 59 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf