Portorož, Slovenia Pavement management system on a French toll network Cécile GiacobiCécile Giacobi ASFASF Pavement expertPavement expert

Portorož, Slovenia 2 oAutoroutes du Sud de la France (South of France highways): private toll highways concessionary longest toll highways network in France km of highways in service about 61 millions square meters of pavements ASF network

Portorož, Slovenia 3 Part of pavements in road maintenance o Pavements take a great part for safety and comfort o Pavements represent more than 50 % of the budget for maintenance works ASF has developed and set up a pavement management system: - to optimize maintenance works - to maintain the level of service

Portorož, Slovenia 4 inventory time construction

Portorož, Slovenia 5 Inventory oEssential for a good asset management o Impossible to do a diagnosis if we do not have information about the existing pavement o Necessary to update rigorously the database with a lot of precision

Portorož, Slovenia 6 In the database are described all the pavement layers (construction and maintenance) Date Thickness Nature Detailed results of works Inventory

Portorož, Slovenia 7 inventory condition survey temps construction

Portorož, Slovenia 8 Condition survey o Condition survey defined by an intern policy o Systematic condition survey every 3 years for the surface characteristics, realized with high speed multifunction devices o Particular condition survey concerns structure characteristics

Portorož, Slovenia 9 oSCRIM ® Sideway force coefficient Macrotexture (equivalent of a sand patch test result) Condition survey

Portorož, Slovenia 10 oAMAC ® Longitudinal evenness Rutting Distresses Noise Condition survey

Portorož, Slovenia 11 inventory condition survey notation temps construction

Portorož, Slovenia 12 Indexes calculation o For each characteristic, the measure is compared to thresholds and classified according to different levels of service: A for a good level to E for a bad level unitary indicators 5 mm8 mm10 mm15 mm ruttingABCDE

Portorož, Slovenia 13 Indexes calculation o Unitary indicators are crossed to obtain a specific index o The specific indexes are then crossed to obtain a global index o Main indexes – adhesion (macrotexture and skid resistance) – evenness (rutting and longitudinal evenness) – distresses ABCDE AABBCC BBBCCD CBCCDD DCCDDE ECDDEE ABCDE AABBCC BBBCCD CBCCDD DCCDDE ECDDEE ABCDE AABBCC BBBCCD CBCCDD DCCDDE ECDDEE Index 2 Global index Index 1

Portorož, Slovenia 14 Indexes calculation o Marks calculation: Mark asigned to each level Calculation of the mark for a section, a highway or the network according to the repartition of level of service ABCDE mark (vi) % (pi) mark =  i=1 à 5 v i.p i

Portorož, Slovenia 15 inventory condition survey notation scheduling notation scheduling notation scheduling notation scheduling Medium and long term Prediction models time construction

Portorož, Slovenia 16 Maintenance works scheduling oThe network is broken down into uniform sections according to their surface course (same nature of surface course and same date of works)

Portorož, Slovenia 17 Maintenance works scheduling o Indexes and marks are calculated for each section of the network, to classify them SectionsMark 1 A63 sens 1 du PR 13.3 au PR A63 sens 2 du PR 13.3 au PR A63 sens 1 du PR 27.3 au PR A9 sens 2 du PR 29.5 au PR A72 sens 1 du PR 8 au PR

Portorož, Slovenia 18 oTo program works for medium and long term, prediction models for sideway force coefficient and macrotexture have been developped according: Surface course nature gradding Traffic Maintenance works scheduling

Portorož, Slovenia 19 Maintenance works scheduling o Works and budget needs are scheduled for long term (end of the concession, …) o Regularly updating with condition survey results Uniform works sections Works proposed Budget for each year

Portorož, Slovenia 20 inventory condition survey notation scheduling works study time construction notation scheduling notation scheduling notation scheduling Medium and long term Prediction models

Portorož, Slovenia 21 Works study o The pavement management system is just a decision aid model o Detailed study should be realized to analyze all the characteristics and to confirm the necessity of works o Further investigations must be realized to define the nature of works (bearing capacity, core sample)

Portorož, Slovenia 22 time works construction inventory condition survey notation scheduling works study notation scheduling notation scheduling notation scheduling Medium and long term Prediction models

Portorož, Slovenia 23 time works construction Follow-up of level of service inventory condition survey notation scheduling works study notation scheduling notation scheduling notation scheduling Moyen et long terme Lois d’évolution

Portorož, Slovenia 24 oAll the index for a highway or the network Follow-up of level of service oComparaison of the highways

Portorož, Slovenia 25 oEvolution with time for an index oEvolution of the marks with time for different indexes Follow-up of level of service

Portorož, Slovenia 26 Conclusion oPavement management system allows the manager To define the most appropriated maintenance works To make sure that the maintenance works are realized when necessary To schedule and optimize the budget To follow the level of service and to make sure that it does not decrease specially the safety level

Portorož, Slovenia 27 Thank you for your attention