Roads

Roads

Roads created in Oé-Cusse have several features related to the region and also the long terms objectives of the ZEESM TL project.

Design

A high quality of design is used to make sure the roads fit into both the biological and social environment. Care is taken that access points, future traffic needs, safety, drainage and protection of cultural or environmental structures are considered before construction begins.

Drainage

Rainy season in Oé-Cusse can be severe, with flash flooding. Data from the last 50 years show lows of 43mm and highs of 197mm. Roads were built with these extremes in mind, so that water will not wash over the road. Different types of drainage were used for different areas, where possible cheaper canal were used but in areas that needed it, covered drains were used.

Safety

Roundabouts were used rather than blind corners at main junctions as they slow traffic. Pedestrian crossing points were inserted along the roads. Safe, high pavements were created for pedestrians.

Local materials and skills

Materials used were locally sourced and used masonry skills that are well known in Oé-Cusse. This allowed for more local employment and was better for the environment.

Long Term Structures

Roads, pavements and roundabouts were all built not just for the current volume of traffic but for future volumes. A forecast was made for water levels the next hundred years was made, including information on climate change.