Environmental Assessment
Volume B-5.5
Mine
Traffic
Ambatovy Project
392
January 2006
and the work of contractors, which is difficult to predict quantitatively and has
not been included in Table 5.5-2.
Based on the number of vehicles estimated in Table 5.5-2, the total distances to
be traveled annually by project vehicles along the major access routes is
summarized in Table 5.5-3 .
Table 5.5-3 Vehicle Kilometres per Year
Project Phase
Vehicle
Types
RN2, Moramanga-
Toamasina
RN2, Moramanga-
Antananarivo
RN44, Ampitambe-
Moramanga
cars
0
0
0.07 million
trucks
2.92 million
0.19 million
0.13 million
buses
0
0
0.07 million
construction (3 years)
(million km per year)
total
2.92 million
0.19 million
0.27 million
cars
0
0
0.07 million
trucks
0.73 million
0.09 million
0.04 million
buses
0
0
0.05 million
operations (27 years)
(million km per year)
total
0.73 million
0.09 million
0.16 million
Based on numbers of kilometres, the highest impact of the project will be along
the RN2 between Moramanga and Toamasina. The highest impacts along all
routes are expected during the construction phase.
Traffic volume effects will be most apparent in Moramanga, where existing
traffic congestion is highest and where all three of the routes meet. The project is
likely to increase traffic congestion in Moramanga, unless additional bypass
roads are constructed.
Accident Rates
Existing accident rates (measured as number of reported accidents per one
million motor vehicle kilometres driven) have been documented on the RN2
between Brickaville and Toamasina at 3.12 per million vehicle kilometres based
on Malagasy government statistics. The road conditions along other parts of
RN2 and RN44 are assumed to be equivalent to this, and accident rates are
assumed to rise at a level proportional to increased traffic. Based on the
additional estimated traffic volumes, impacts on accident rates have been
estimated and are shown in Table 5.5-4.
