yle="font-size:
10.0pt;font-family:" arial","sans-serif";mso-fareast-font-family:"times="" new="" roman""="">In
1927 the old village of Tunuma and the other settlements were razed and their
population relocated either to neighboring villages or to a previously farmed
empty zone 3 kilometers away that was made available to build a new
neighborhood (the current neighborhood of Tounouma).Sia
proper, which survives today as the Dioulasoba neighborhood, was partly spared
this total destruction but nonetheless modified by a large artery pierced
through it in 1939 and the widening of the streets in successive urban renewal
projects. Between 1926 and 1929 a grid pattern of new avenues and streets intersected
by diagonals radiating from a center, and square urban lots between them,
established the framework for the modern city center. The Abidjan railway reached Bobo-Diouolasso in 1934, but the growth of
the city as a colonial industrial center halted because of the world economic
crisis and the suppression of the colony of Upper Volta in 1933.