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Road type 2: Primary roads
                  The truck traffic intensity is around 500 per day in
                  one direction. The number of cars is estimated to be
                  5,000 cars a day in one direction. The width of this
                  primary road is approximately 12 meters. The total
                  length of this type of primary road in Tabasco
                  included in the model 1082 km.

                        Figure 3.7:   Road profile of the primary road



                  Road type 3: Secondary roads
                  The truck traffic intensity is around 250 per day in
                  one direction. The number of cars is estimated to be
                  2,500 cars a day in one direction. The width of this
                  secondary road is approximately 9 meters. The total
                  length of this type of secondary road in Tabasco
                  included in the model 1171 km.

                        Figure 3.8:    Road profile of the secondary road


                  Road type 4: Rural roads
                  The truck traffic intensity is around 125 a day in one
                  direction. The number of cars is estimated to be
                  1,250 cars a day in one direction. The width of this
                  rural road is approximately 7 meters. The total
                  length of this type of rural road in Tabasco included
                  in the model is 8683 km.


                        Figure 3.9:   Road profile of the rural road






                  Road type 5: Access roads
                  The truck traffic intensity is around 50 a day in one
                  direction. The number of cars is estimated to be 500
                  cars a day in one direction. The width of these access
                  roads is approximately 6 meters. The total length of
                  this type of access road in Tabasco included in the
                  model is 604 km. This amount may strongly deviate
                  from the practice since not all the road traffic data
                  was available.


                        Figure 3.10:   Road profile of the access road



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