Enayam Port

Tamil Research Institute
RAPID TECHNO-ECONOMIC FEASIBILITY REPORT FOR
DEVELOPMENT OF COLACHEL PORT AT TAMILNADU
FINAL REPORT
9.6.1.3. Container yard
The capacity of a container yard is governed by the following parameters:
• Mean Dwell Time: Time a container stays inside in the yard. 4.5 days for loaded containers (a mean value of
3 for trans-shipped and 6 for gateway) and 8 days for empty ones is used for calculations. These numbers are
usual in other container terminals around the world.
• Slots: This is the total number of twenty - foot ground slots of the container yard. The planned terminal is
composed by:
• 5,112 loaded container slots
• 432 reefer container slots
• 600 empty container slots
• Mean Storage Height: In an automated yard this height can be around 75 % of the maximum storage height -5
for normal containers, 4 for reefers and 7 for empty containers. 70 % is used taking into account some other
factors like peaks and re-organization activities.
The total capacity of the container yard is almost 1.8 M TEU. Given the variability of the dwell time, this allowance
from the 1.7 M TEU traffic forecasts seems appropriate.
The following table summarizes the capacity calculations:
Description Unit Value
Yard Capacity for loaded containers
Slots (9 lines, 30 rows blocks) No 5,544
Mean dwell time days 4.5
Maximum storage height No 5.00
Mean storage height (70%) No 3.5
Total Capacity for loaded containers No/yr 1,573,880
Yard Capacity for empty containers
Slots (20 feet) No 600
Dwell time days 8
Maximum storage height No 7
Mean storage height No 4
Total Capacity for loaded containers No/yr 109,500
Total slots No 9,316
Mean dwell time (loaded+empty) days 4.9
Mean storage height (loaded+empty) No 3.6
Total Yard Capacity No/yr 1,790,143
Table 37: Yard capacity calculations
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