New Type of Roundabout: Roundabout with “Depressed” Lanes for Right Turning – “Flower Roundabout”
Recently, many of the foreign traffic-safety analyses point out the low level of traffic safety in multi-lane roundabouts. This problem is resolved in several ways in different countries; however, the solution, whereby the number of conflict points is diminished (e.g. turbo roundabout) has proven to...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
University of Zagreb, Faculty of Transport and Traffic Sciences
2011-09-01
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| Series: | Promet (Zagreb) |
| Online Access: | http://www.fpz.unizg.hr/traffic/index.php/PROMTT/article/view/153 |
| _version_ | 1818586116807196672 |
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| author | Tomaž Tollazzi Marko Renčelj Sašo Turnšek |
| author_facet | Tomaž Tollazzi Marko Renčelj Sašo Turnšek |
| author_sort | Tomaž Tollazzi |
| collection | DOAJ |
| description | Recently, many of the foreign traffic-safety analyses point out the low level of traffic safety in multi-lane roundabouts. This problem is resolved in several ways in different countries; however, the solution, whereby the number of conflict points is diminished (e.g. turbo roundabout) has proven to be the most successful. However, the turbo roundabout also has its deficiencies: it has conflict crossing points and larger reconstruction of the existing two-lane roundabout is needed when the turbo roundabout is to be implemented instead of the existing one. In the paper a new type of roundabout has been introduced; the roundabout with “depressed” lanes for right turning (“the flower-roundabout”). Financially speaking, the main advantage of the new type of roundabout is that it can be implemented within the dimensions of the already existing “normal” two-lane roundabout. From the traffic-safety point of view, the main advantage of the new type of roundabout is that it has no crossing conflict points.
KEYWORDS: traffic safety, roundabout, turbo roundabout, roundabout with “depressed” lanes for right turn |
| first_indexed | 2024-12-16T08:47:51Z |
| format | Article |
| id | doaj.art-0690d37ea54a4ef9875153d85c9ffd48 |
| institution | Directory Open Access Journal |
| issn | 0353-5320 1848-4069 |
| language | English |
| last_indexed | 2024-12-16T08:47:51Z |
| publishDate | 2011-09-01 |
| publisher | University of Zagreb, Faculty of Transport and Traffic Sciences |
| record_format | Article |
| series | Promet (Zagreb) |
| spelling | doaj.art-0690d37ea54a4ef9875153d85c9ffd482022-12-21T22:37:34ZengUniversity of Zagreb, Faculty of Transport and Traffic SciencesPromet (Zagreb)0353-53201848-40692011-09-0123535335810.7307/ptt.v23i5.15360New Type of Roundabout: Roundabout with “Depressed” Lanes for Right Turning – “Flower Roundabout”Tomaž TollazziMarko RenčeljSašo TurnšekRecently, many of the foreign traffic-safety analyses point out the low level of traffic safety in multi-lane roundabouts. This problem is resolved in several ways in different countries; however, the solution, whereby the number of conflict points is diminished (e.g. turbo roundabout) has proven to be the most successful. However, the turbo roundabout also has its deficiencies: it has conflict crossing points and larger reconstruction of the existing two-lane roundabout is needed when the turbo roundabout is to be implemented instead of the existing one. In the paper a new type of roundabout has been introduced; the roundabout with “depressed” lanes for right turning (“the flower-roundabout”). Financially speaking, the main advantage of the new type of roundabout is that it can be implemented within the dimensions of the already existing “normal” two-lane roundabout. From the traffic-safety point of view, the main advantage of the new type of roundabout is that it has no crossing conflict points. KEYWORDS: traffic safety, roundabout, turbo roundabout, roundabout with “depressed” lanes for right turnhttp://www.fpz.unizg.hr/traffic/index.php/PROMTT/article/view/153 |
| spellingShingle | Tomaž Tollazzi Marko Renčelj Sašo Turnšek New Type of Roundabout: Roundabout with “Depressed” Lanes for Right Turning – “Flower Roundabout” Promet (Zagreb) |
| title | New Type of Roundabout: Roundabout with “Depressed” Lanes for Right Turning – “Flower Roundabout” |
| title_full | New Type of Roundabout: Roundabout with “Depressed” Lanes for Right Turning – “Flower Roundabout” |
| title_fullStr | New Type of Roundabout: Roundabout with “Depressed” Lanes for Right Turning – “Flower Roundabout” |
| title_full_unstemmed | New Type of Roundabout: Roundabout with “Depressed” Lanes for Right Turning – “Flower Roundabout” |
| title_short | New Type of Roundabout: Roundabout with “Depressed” Lanes for Right Turning – “Flower Roundabout” |
| title_sort | new type of roundabout roundabout with depressed lanes for right turning flower roundabout |
| url | http://www.fpz.unizg.hr/traffic/index.php/PROMTT/article/view/153 |
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