AUTOSHUTTLE
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Annex A7: Calculation of specific Space Consumption

1: Substituting a Motorway by AUTOSHUTTLE

a) Substituting a 6-lane motorway   b) Maximum exploitation

Term Value Value Unit  
  a) b)    
Loading gauge of lorry- and bus-convoys
4.7
4.7
m  
speed
180
180
km/h  
acceleration
1
1
m/s²  
braking deceleration
1.1
1.1
m/s²  
number of 6-lane motorways to be substituted
1
  as many as possible  
max. cabins/hour/direction
5,400
15,000
cab.  
daily average
70,000
194,444
cab.  
i. e. average cab./hour/direction 
1,458
4,051
cab.  
interval car convoy
2
2
min  
interval lorry/bus convoy
6
6
min  
i. e. convoys/hour
40
40
 
fraction lorry/bus
11
11
%  
max. number cars/convoy
180
499
cars  
averaged number cars/convoy
49
135
cars  
max. number lorries/buses/convoy
59
165
lorry/bus  
averaged number lorries/buses/convoy
16
45
lorry/bus  
fraction cabins exiting at next station
10
10
%  
length exiting convoys (6 m/cab.)
71,28
198
m  
length of braking track
1,208
1,334
m  
space consumption of braking track
6,038
6,672
0.3 m between loading gauges
pass. car loading interval a entrance bays
0.5
0.5
min based on test runs
number of entrance and exit bays pass car
5
14
1/station  
bus/lorry loading interval a entrance bays 
0.95
0.95
  based on test runs
number of entrance and exit bays bus/lorry
2
4
   
length of loading and unloading area respectively
61
123
m 6 m distance longitudinal+
end piece width of loading and unloading area respectively
26
26
m for entering and shunting
total surface of loading and unloading areas per station
6,354
12,843
 
1 station per
5
5
km  
number of cabins incl. 10 % reserve
493
1,368
1/station to deal with rush hours
averaged cabin length car:
5
5
m  
averaged cabin length lorry/bus:
12
12
m  
length of storage tracks incl. 10% reserve:
3,126
8,684
m/station  
loading gauge of car-cabin storage tracks:
3
3
m  
loading gauge of lorry/bus-cabin storage tracks:
4.2
4.2
m  
area of head of storage yards:
600
1,200
 
space of storage yards:
10,837
29,635
 
length of starting track:
450
600
m  
space consumption of starting tracks:
7,965
10,620
including area between main and start track 
space consumption of main tracks:
9,400
9,400
m²/km  
space consumption of braking tracks:
2,415
2,669
m²/km including loops
space consumption of loading and unloading areas:
1,271
2,569
m²/km  
space consumption of storage tracks:
2,167
5,927
m²/km  
space consumption of starting tracks:
3,186
4,248
m²/km  
total space consumption:
18,439
24,812
m²/km  
space consumption for stations only:
3,438
8,496
m²/km  
         
fraction of time of cabin use:
25
25
%  
km per year:
322,822
322,822
km/cab.  
For comparison purposes:        
width of a conventional 6-lane motorway
36.5
36.5
m  
space consumption 36,500
36,500
m²/km  
AUTOSHUTTLE needs of this area and transports as much as 2.8 six-lane motorways which use 4.1 as much space as AUTOSHUTTLE of equal performance.
51
68
%  

2: Comparison:

a) Extending Motorway from 6 to 8 Lanes
 

a) width (m) number total width (m)
edge lanes
3.75
4
15.0
centre lanes
4.00
4
16.0
hard shoulders
3.25
2
6.5
central reservation
4.00
1
4.0
shoulder
1.50
2
3.0
total    
44.5
       
area/km
44,500
 

b) Build AUTOSHUTTLE and reduce Motorway to 4 Lanes instead

AUTOSHUTTLE instead of enlarging motorway, motorway reduced to 4 lanes. First AUTOSHUTTLE will be built without intermediate stations. Annoyance during construction equals the annoyances during an extension to 8 lanes. After reduction of traffic volume on the motorway took place due to AUTOSHUTTLE the intermediate stations will be built successively. In its final state the motorway has 4 lanes.
 

b) width (m) number total width (m)
edge lanes
3.75
4
15.0
centre lanes
4.00
2
8.0
hard shoulder
3.25
2
6.5
central reservation
4.00
1
4.0
shoulders
1.50
2
3.0
total    
36.5
       
area/km
36,500
 
area of stations /km 
3,438
 
total surface of alternative b):
39,938
 

I.e. 90% of the area of alternative a). The stations could be built on “lost” surfaces between ramps and motorway. The “effective” space consumption can become as low as 82% then, as the example of the A3 connection Leverkusen shows.