Information and communication technologies (ICT) are enjoying fast development which immediately translate into their market enhancements nowadays (1). ICT relaxes both space and time constraints while allowing instant information exchange. In terms of activity-based travel demand, ICT use might substitute, complement or modify individual activity-travel behavior at varying degrees. On the other hand, ICT network externalities complement the social network in positive directions. Overall, ICT use complements activity-travel demand by increasing the number of activity engagements. Besides, similar to the conventional telephone, ICT has been transforming the modern society and life in many ways as well.