Assessment of Space Standards that are used to Improve Roads Network in Upgrading Informal Settlements: The Case of Dar es Salaam City, Tanzania
Dr. Emmanuel Elifadhili Mchome

Abstract
Upgrading of informal settlements involves improvement of roads network that is carried-out by each upgrading project and/or program to develop its own space standards according to the existing space on the ground. The purpose of using the existing space for roads improvement is to avoid massive demolition of houses in roads widening by using approved space standards due to lack of funds required for compensation of the affected properties. However, there is no limit of minimum space required in roads widening for transportation improvement in upgrading informal settlements. Furthermore, there is no study that has been made to examine whether the minimum space standards used in upgrading informal settlements achieve transportation improvement in-terms of traffic mobility and accessibility. This study has therefore; assessed space standards that are used to upgrade/improve roads network in informal settlement to examine whether they achieve improvement of traffic mobility and accessibility.

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