Shared road is double happiness: Evaluation of a “Share the road” sign

- A “Share the road” sign was evaluated on a country road in Norway.
- Interactions between cyclists and car drivers improved in passing situations.
- Self-reported and perceived behavior of others improved.
- Results can be generalized to similar roads with recreational traffic and few conflicts.

A road sign with the text «Share the road» and a picture of a smiling cyclist and a passing car was evaluated in a before-after study with surveys among cyclists and car drivers. The sign was set up at two sites on a test road near Oslo in summer 2014. A similar road was used as a comparison. About two thirds of the participants on the test road had noticed the sign. The majority liked it and agreed with its message. Cyclists have more often noticed the sign than car drivers have and they were somewhat more positive towards the sign. Effects on self-reported behavior and the perceived behavior of others were evaluated by comparing changes from the before- to the after-period between test and comparison road. Self-reported behavior of both cyclists and car drivers has improved on the test road after the sign was set up, especially in overtaking situations, and these results are in accordance with how cyclists and car drivers perceived each other's behavior. The general perception of other road users has improved as well. The results are most likely representative of similar roads with a large proportion of car traffic that is related to recreation and a relatively low level of conflict.