A system comprising: a first server connected to a network via a first network interface circuit, the first server including a memory storing transit data; a second server connected to the network via a second network interface circuit, the second server including a memory for storing a behavioural hazard measure module which includes data collected from a subject vehicle and traffic objects connected to the network and transit data; a client machine connected to the network via a third network interface circuit, the client machine including a memory which stores a visualization module with instructions for execution by a processor to display visualizations of data generated by the behavioural hazard measure module; wherein the behavioural hazard measure module includes instructions for execution by a processor in the second server to: obtain the relative speed between a first traffic object and a second traffic object; receive the separation distance between the first traffic object and the second traffic object; combine the relative speed and the separation distance to form a quantitative measure of hazard encountered by the first traffic object, wherein the instructions to combine include instructions to: apply a compensating factor to the relative speed to form a compensated relative speed; and divide the compensated relative speed by the separation distance; repeat the obtain, receive and combine operations to form cumulative measures of hazard associated with the first traffic object; and analyze the cumulative measures of hazard to derive a first traffic object safety score for the first traffic object. a first server connected to a network via a first network interface circuit, the first server including a memory storing transit data; a second server connected to the network via a second network interface circuit, the second server including a memory for storing a behavioural hazard measure module which includes data collected from a subject vehicle and traffic objects connected to the network and transit data; a client machine connected to the network via a third network interface circuit, the client machine including a memory which stores a visualization module with instructions for execution by a processor to display visualizations of data generated by the behavioural hazard measure module; wherein the behavioural hazard measure module includes instructions for execution by a processor in the second server to: obtain the relative speed between a first traffic object and a second traffic object; receive the separation distance between the first traffic object and the second traffic object; combine the relative speed and the separation distance to form a quantitative measure of hazard encountered by the first traffic object, wherein the instructions to combine include instructions to: apply a compensating factor to the relative speed to form a compensated relative speed; and divide the compensated relative speed by the separation distance; repeat the obtain, receive and combine operations to form cumulative measures of hazard associated with the first traffic object; and analyze the cumulative measures of hazard to derive a first traffic object safety score for the first traffic object. obtain the relative speed between a first traffic object and a second traffic object; receive the separation distance between the first traffic object and the second traffic object; combine the relative speed and the separation distance to form a quantitative measure of hazard encountered by the first traffic object, wherein the instructions to combine include instructions to: apply a compensating factor to the relative speed to form a compensated relative speed; and divide the compensated relative speed by the separation distance; apply a compensating factor to the relative speed to form a compensated relative speed; and divide the compensated relative speed by the separation distance; repeat the obtain, receive and combine operations to form cumulative measures of hazard associated with the first traffic object; and analyze the cumulative measures of hazard to derive a first traffic object safety score for the first traffic object.