Abstract:

A systemic  frame work for the national transport network planning is presented in this study viewing each mode of transportation and sector of the economic activity as a sub system of the over all national social economic system this study is on the development of suitable national transport network planned based on the  existing and committed new socio economic profile referred to respectively as the reference level national development scenario this is  achieved  using  an appropriate transport  priority index TPI mode for each state of the  federal republic of  Nigeria. Keeping in view, their characteristic features  allocation aspects in relation to  activity  centers. states with  higher TPI values are picked up  to suggest improvement and or construction of  new  transport  links to enhance accessibility and there by reduced their  TPI the  TPI scores are also used to computer aggregate benefits weighted with population accrued due to new transport links  as  envisaged  in reference level national development scenarios to justify their construction in the light of economic progress and  social equity that they promoted these custom tailored models based on the  concept of  transport  priority indexes are extremely useful in national transport network planning for the  federal republic of  Nigeria.