タンザニア国ゲレザニ道路拡幅計画準備調査

Client            Japan International Cooperation Agency (JICA)

Duration       From  May 2010 to March 2011

Target SectionApproximately 1.3km
(from Gerezani/Kamata Intersection to Bandari/Kilwa Intersection)
WidthCarriageways 7.5 m x 2; BRT central reservation 9.0 m;
footpaths 2.0~3.0 m x 2
Road Paving WorkWearing courseAsphalt concrete 5 cm 
Binder courseAsphalt concrete 5 cm 
Base courseAsphalt stabilized (DBM) 10 cm
Sub-base courseCement stabilized 20 cm
FootpathAsphalt concrete surface course 3 cm
Bus bays, level crossingCement concrete paving 20 cm 
BridgeGerezani BridgePC-T girders, 40 m long, pile foundations, existing railway overpass(bridge separated into width 11.0 m and 24.0 m)
Drainage workConcrete U-shaped side drains        :installed along the entire routeRoad crossing culvert   :                  5 locations (box culvert of 1.1 m x 1.1 m or other specifications)

Slope drainage ditches  :                  37 locations

Auxiliary road structuresCurbstone work, Concrete retaining walls, Safety barriers,
Traffic signals, Streetlights, Road signs, Road markings, Bus bays