Prince Sultan bin Salman bin Abdulaziz, the secretary general of the higher tourism commission, along with more than 500 delegates from 20 Gulf, Arab and foreign Countries in addition to academicians, experts, researchers and architects will participate in Jeddah international urban forum, due to start its activities here tomorrow. The four-day forum is to be organized by the Saudi society for urban sciences in cooperation with Ruthana agency. Underling in the importance of the forum, Prince Khaled bin Abdullah bin Meqrin al-Saud, the chairman of the board of directors of the Saudi society for urban sciences, said the organization of the forum embodies the significant development witnessed by the Kingdom in the field of urban development.