Effects of speed display signs on driving speed at pedestrian crossings on collector streets

Fanny Malin (Corresponding Author), Juha Luoma

Research output: Contribution to journalArticleScientificpeer-review

Abstract

This study was designed to evaluate the short- and long-term effects of speed display signs on driving speed at pedestrian crossings in a low-speed (40 km/h) urban environment. Driving speeds were compared 1 week before installation, after installation (1 week; 1 month; 3 months; 5 months) and 1 week after removal. The main results showed that the speed displays decreased the mean speed by 0.5–2.9 km/h, which translates to a 4–22% drop in pedestrian fatality risk. Furthermore, there was a drop in the proportion of speeding vehicles and approaching speed of individual vehicles. The decrease in speed persisted over time, suggesting that speed displays may reduce speeds in the long term. In conclusion, installing speed displays at pedestrian crossings on collector streets reduces driving speeds and could contribute to the safety of pedestrians.

Original languageEnglish
Pages (from-to)433-438
Number of pages6
JournalTransportation Research Part F: Traffic Psychology and Behaviour
Volume74
DOIs
Publication statusPublished - Oct 2020
MoE publication typeA1 Journal article-refereed

Keywords

  • Driver behaviour
  • Field study
  • Speed indicator device
  • Traffic safety

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