Standardization of Information System for Civil-Engineering Sites

More and more civil-engineering sites, and especially road construction are experimenting all over the world new kind of systems aiming at improving quality and efficiency of the construction tasks. These systems make profit of the new technologies of information and communication, still rarely used on the sites. Most of them bring partial solutions but are not compatible. This diversity, of shape and sometimes of principles, and this incompatibility are a serious barrier to their development at an industrial level and a strong demand for standardization exists as well from the contractors side as from the machine manufacturers side. The authors start by setting the background of this standardization activity, which is discussed in the frame of a new working group of the ISO TC-127 committee. They introduce an important concept which is the concept of ?road product model?, becoming more and more important for those who try to unify the digital representations of the road all along its lifecycle. Then, they present the differences between logical and physical modeling and explain why they propose to start the standardization discussions at the logical level. The core part of the paper is the presentation and comment of the logical model of an informationcontrolled road site which can be applied to any kind of system of this type. They finish by giving some indications upon how to use this model in the following of the work.