Table 5. Matrix of navigation project automation alternatives.
Departure
from
Primary
Secondary Tertiary
Difficulty of
Cost of
existing
Navigation project function
Automation measure
Level
purpose
purpose
purpose
implementation
implementation procedure
Lock operations
Filling and emptying
Timing and monitoring valve movements
C
b
a
L
M
L
Controlling valve opening and closing
D
b
a
L
L
N
rates
Varying valve operation as a function of
A
b
a
M
M
L
chamber stage
Balancing flows between chamber sides
A
a
b
M
M
N
Programming valve operation for
A
a
b
M
M
L
various vessel types
Establishing and remotely resetting
B
b
a
M
M
L
limit positions of valves
Interlocking valve operation with upper
A
a
b
c
H
H
H
and/or lower gate operation
Gate opening and closing
Controlling rate of gate motion
D
b
a
L
M
L
Latching gates in their recesses
C
a
b
L
L
M
Interlocking gate operation between
A
a
b
c
M
M
H
upper and lower gates
Interlocking gate operation with filling
A
b
a
M
M
H
and emptying valve operation
Interlocking gate opening with gage
C
a
b
L
L
L
readings on both sides of a gate
Interlocking gate operation with vessel
B
a
b
c
M
H
M
position in chamber
Monitoring and controlling gate skew
D
b
a
L
M
M
Controlling closure of miter gates
D
b
a
L
L
L
needing a specific sequence
Establishing and remotely resetting
B
b
a
M
M
L
limit positions of gates
Programming sector gates to achieve
D
b
c
L
M
L
optimum flow-through
General machinery operation
Monitoring and controlling hydraulic
B
b
c
L
M
M
systems
Establishing and operating an alarm
B
b
a
c
M
M
L
system
Monitoring and controlling sump pumping
B
b
c
L
L
L
equipment
Debris and ice control
Programmed operation of pneumatic debris
B
b
c
M
M
L
or ice flushers and screens
Interlocks between components of pneumatic
C
b
c
M
M
L
debris control or ice control systems
Temperature-triggered operating programs
C
b
c
L
M
L
for ice control systems
Warning system for ice accumulation on
B
a
M
M
H
barge bottoms at entrance to chamber
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