Road pavements tend to deteriorate as a result of influence of environment, weather conditions and traffic effect. The road owner or state road maintenance authority is therefore facing a dilemma when to trigger off maintenance or rehabilitation action: while time passes the pavement performance decreases and the road deteriorates, but expenses (extra maintenance costs, user delay costs) increase. The optimisation of the investor's costs on one side and the user costs on the other is the common objective. The present shortcomings of pavement management systems are caused by the lack of validated pavement performance models. The road monitoring (pavement performance measurements) is essential and economically justifiable activity which can lead to proper decisions on maintenance or rehabilitation action on roads. In this research the methodology for the evaluation of road monitoring is proposed. The methodology was derived from economic evaluation of different equipment and methods, road condition and performance, and relation of their costs to serviceability on the network level. The result of work is a proposition for adequate use (time schedule and regular monitoring intervals on roads) of road monitoring equipment, used in Slovenia (A). For the covering abstract of the conference see ITRD E212343.
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