Light Rail Transit Urban Insertion and Safety

Novales, Margarita; Teixeira, Manuel; Fontaine, Laetitia

doi:10.3141/2419-07

Cited by 6 publications

(2 citation statements)

References 10 publications

(9 reference statements)

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“…The most common example of this is a left turn over a tramway in the center of the road (Figure 4a), but locations where car and tram lanes merge can have similar effects (Figure 4b). The turning conflict also is one of the most important tram safety issues internationally (2,4,6,8,10).…”

Section: Organization and Legislationmentioning

confidence: 99%

Tram Safety in Mixed Traffic: Best Practices from Switzerland

Marti

Kupferschmid

Schwertner

et al. 2016

Transportation Research Record: Journal of the Transportation R

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This paper presents an analysis of tram safety in Switzerland and best practices for operating trams in mixed traffic developed by Swiss tram operators and authorities. Operating trams in mixed traffic can create safety problems because trams have differing operating characteristics from other roadway traffic. It is not always feasible to provide complete separation of tramways from other road users in crowded cities. Therefore, improving tram safety in mixed traffic has gained significant attention in recent years. In Switzerland, the majority of tram collisions occur with cars, but the most severe consequences stem from collisions with pedestrians and bicycles. The location of tram collisions is linked to the likelihood of interactions and, therefore, to the amount of tram service and traffic levels. Unfortunately, the possibilities for quantitatively assessing the safety of specific street configurations are limited because of missing secondary data on context, the small number of tram accidents, and the large number of potentially important variables. Therefore, this research supplemented available quantitative data with qualitative data. The most pertinent safety issues operators face are conflicts with turning vehicles (left-turn issue), disrespect of traffic signals, confusing or ambiguous layouts, distracted pedestrians, pedestrians unaware that trams have priority, missing physical separation in semiexclusive running sections, and lack of visibility. Although many measures have been successfully applied to mitigate these issues, it is not possible to achieve absolute safety, particularly where people’s behavior is a main source of accidents.

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Section: Organization and Legislationmentioning

confidence: 99%

Tram Safety in Mixed Traffic: Best Practices from Switzerland

Marti

Kupferschmid

Schwertner

et al. 2016

Transportation Research Record: Journal of the Transportation R

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“…Furthermore, they can generate negative media attention and thus undermine trust in tram systems and jeopardize public support for public transport. The resurgence of trams has increased research in tram safety, including TCRP Reports 17 (1), 69 (2), 137 (3), and 175 (4) in the United States, COST Action TU1103 in Europe (5)(6)(7)(8), and studies such as that by Currie and Reynolds in Australia (9).…”

mentioning

confidence: 99%

Infrastructure and Operational Influences on Collisions Between Trams and Left-Turning Cars

Marti¹,

Toletti²,

Tresch³

et al. 2017

Transportation Research Record: Journal of the Transportation R

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This research identified infrastructural and operational factors that influenced the most common type of car–tram collision: cars making opposing turns in front of trams. Few studies have analyzed influences on car–tram collisions quantitatively, but none have explored predictor factors for opposing-turn crashes—a research gap addressed with this paper. The two largest Swiss tram networks, Basel and Zurich, were used for the analysis. A point-based research approach was chosen: all locations within a tram network at which a car could turn left (an opposing turn where traffic drives on the right) in front of a tram were identified. For each of these points, data on dependent and predictor variables were collected. This data set was analyzed with Poisson, negative binomial, and zero-inflated negative binomial regression models. The number of left-turning car–tram collisions was used as the dependent variable, while predictors were derived from a literature review; models were fitted by using all predictors and with forward variable selection by means of Akaike’s information criterion. Traffic volumes (cars and trams), tram speed, and dedicated left-turn lanes were found to be significantly associated with a higher frequency of car–tram collisions, whereas turning left to access a service rather than a road, left-turn restrictions, proximity to a tram stop, and perpendicular turning angles were significantly associated with a lower frequency of left-turning car–tram collisions. On the basis of these results, left turns across tramways should be restricted for cars. Remaining conflict points should be located close to tram stops, have limited tram speed, and feature perpendicular turning angles.

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Pedestrian safety at intersections near light rail transit stations

Pulugurtha

Srirangam

2021

Public Transp

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Light Rail Transit Urban Insertion and Safety

Cited by 6 publications

References 10 publications

Tram Safety in Mixed Traffic: Best Practices from Switzerland

Tram Safety in Mixed Traffic: Best Practices from Switzerland

Infrastructure and Operational Influences on Collisions Between Trams and Left-Turning Cars

Pedestrian safety at intersections near light rail transit stations

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