Network effects in C-ITS - An analysis of road hazard warning implemented with vehicle-to-vehicle communication

Risto Öörni

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review


The paper analyses the characteristics of network effects present in the road hazard warning use case of C-ITS implemented with vehicle to vehicle communication. An approach based on conditional probability and analysis of spatial-temporal characteristics of a typical usage scenario was developed to analyse the relationship between the share of equipped road users and the conditional probability of an already equipped user receiving a warning of a relevant event. The results suggest that even relatively low fleet penetrations may allow communicating a road hazard warning as a DENM with high probability of success, when the hazard is detected and the related DENM transmitted by a vehicle travelling to opposite direction to user’s vehicle on a single-carriageway interurban road. The approach used in the paper also contributes to understanding of network effects in C-ITS use cases.
Original languageEnglish
Title of host publicationVirtual ITS European Congress 2020
Subtitle of host publication(content library)
PublisherERTICO - ITS Europe
Number of pages12
Publication statusPublished - 10 Nov 2020
MoE publication typeNot Eligible
EventVirtual ITS European Congress: The Mobility R-Evolution - Online
Duration: 9 Nov 202010 Nov 2020


ConferenceVirtual ITS European Congress
Internet address


  • C-ITS
  • network effects
  • road hazard warning


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