Article snapshot taken from Wikipedia with creative commons attribution-sharealike license.
Give it a read and then ask your questions in the chat.
We can research this topic together.
The T7 is a Trunk road in Tanzania. The road runs from the city center of Dar es Salaam at the Kamata Intersection, south along the Indian Ocean to Lindi. The road then extends an additional 27 km (17 mi) to Mingoyo, where the road connects to the T6 road. The roads as it is approximately 447 km (278 mi). The road is entirely paved.