This study deals with developing a framework for estimating transportation demand over the long term to 2100. The demand for passenger and freight transport over the past 30 years has been analyzed in  order to identify trends that may be applicable to the future for 11 world regions. Each region has been investigated separately and region-specific attributes and correlation of traffic volume to the development of per capita income have been used to determine relationships between these two variables. The approach is introduced and preliminary results are presented and discussed.