This article concerns red-light running at intersections and deals with the impact of different types of control strategies. Red running occurrences at red onset are observed through multi-camera observation system installed on an isolated intersection that runs under different control strategies. We analyse the variety of conditions produced during the phase change interval, in terms of exposure to violate for approaching drivers on the link and in terms of surrounding conditions: downstream crossing possibilities, opposing stream presence, upstream past crossing conditions. Some specific features have been identified for further impact analysis in the data base, as they depend on the control strategy and impacts red running behaviour. We investigate for instance very short time intervals between the red switchovers of successive signal lines.