Optimization model presentation for road network maintenance with rural road safety increasing aim

Traffic safety is one of main factors in traffic engineering and transportation planning in world. Absence of safety principles in road engineering designing, transportation planing and maintenance cause society have heavy damages as every year a part of improvement budget have been consumed in road bodification and maintenance. This research present road super structure maintenance optimization model for rural road safety increasing base on traffic parameters and engineering design. We use Marchoph model for superstructure future situation anticipation and have been introduced with consider to PCI index that change between 0 to 100 and 100 shows the best situation of accommodation. The research results show that, using this model cause road maintenance cost reducing and increase maintenance. Services quality and satisfication of road user.