Intervals NEW
[159.5.4] Published 31. December 2021.[
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]
[
Misc. Intro |
Lisboa |
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Reindeer Expressed |
Intervals NEW
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The changes in v.0.0.3 (#001 vehicle code using the intervals + #007 individual intervals in each direction) opens up new possibilities - and some problems.
Consider this simplistic route network:
Routes 1 and 2 are combined at «Southwest», with the vehicles running through the stop after a short layover.
The three routes are defined like this, with the main stops only:
File: intervals/01.def
#
# 1 Southwest - North
# -------------------------------------
#
AA001 A B:10 Southwest
AA002 B:10 A:10 South
AA003 C:10 D:10 Central
AA004 A:10 B North
#
# 2 Southwest - East
# -------------------------------------
#
AA001 B A:10 Southwest
AA005 B:10 A:10 West
AA003 A:10 B:10 Central
AA006 A:10 B East
#
# 3 Northwest - East
# -------------------------------------
#
AA007 A B:15 Northwest
AA005 A:15 B:10 West
AA003 A:10 B:10 Central
AA006 A:10 B East
Then the network setup file, with 15 a minute interval on route 1 and 2, and 30 minutes on route 3:
File: intervals/simple.setup
## Networkplanner ##
route set 1 file:01.def interval:15 down:2
route set 2 file:02.def interval:15 down:2
route set 3 file:03.def interval:30 down:2 up:13
tp :tabulated Central
vehicles vehicles.def
The vehicles definition file, with rute 1 and 2 combined:
file: intervals/vehicles.def
=1000
1 U North/1;North 10
2 D Southwest/2;Southwest 2
2 U East/2;East 10
1 D Southwest/1;Southwest 2
=3000
3 D Northwest 10
3 U East 10
The output:
Central [A]
07 22 -- 37 52 -- | 2 East
-- -- 27 -- -- 57 | 3 East
Central [B]
10 -- 25 40 -- 55 | 2 Southwest
-- 23 -- -- 53 -- | 3 Northwest
Central [C]
07 22 37 52 | 1 North
Central [D]
10 25 40 55 | 1 Southwest
1001 1002 1003 1004 1005 1006 1007 1008 1009 1010
----------------------------------------------------------------------------
North/1 dep 0000 0015 0030 0045 0100 0115 0130 0145 0200 0215
Southwest arr 0030 0045 0100 0115 0130 0145 0200 0215 0230 0245
Southwest/2 dep 0032 0047 0102 0117 0132 0147 0202 0217 0232 0247
East arr 0102 0117 0132 0147 0202 0217 0232 0247 0302 0317
East/2 dep 0115 0130 0145 0200 0215 0230 0245 0300 0315 0330
Southwest arr 0145 0200 0215 0230 0245 0300 0315 0330 0345 0400
Southwest/1 dep 0147 0202 0217 0232 0247 0302 0317 0332 0347 0402
North arr 0217 0232 0247 0302 0317 0332 0347 0402 0417 0432
North/1 dep 0230 0245 0300 0315 0330 0345 0400 0415 0430 0445
3001 3002 3003 3004
--------------------------------------
Northwest dep 0002 0032 0102 0132
East arr 0037 0107 0137 0207
East dep 0113 0143 0213 0243
Northwest arr 0148 0218 0248 0318
Northwest dep 0202 0232 0302 0332
1000: Number of vehicles: 10
3000: Number of vehicles: 4
---------------------------------------
Total number of vehicles: 14
It would be nice to have en even interval between the vehicles on the shared east - west section (West - Central - East). The different intervals on the routes (2 and 3) makes this challenging, as shown above. And I have not tried that hard.
Let us adjust the intervals on route 2, from «15» (or «15+15») to «10+20», to make a slot for route 3:
File: intervals/skewed.def
## Networkplanner ##
route set 1 file:01.def interval:15 down:2
route set 2 file:02.def interval:10;20 down:2
route set 3 file:03.def interval:30 down:17 up:20
tp :tabulated Central
vehicles vehicles.def
The timingpoints for the east - west section show that we got it right, with an even 10 minute combined interval:
Central [A]
02 -- 22 32 -- 52 | 2 East
-- 12 -- -- 42 -- | 3 East
Central [B]
-- 10 20 -- 40 50 | 2 Southwest
00 -- -- 30 -- -- | 3 Northwest
Central [C]
07 22 37 52 | 1 North
Central [D]
10 25 40 55 | 1 Southwest
The vehicle part is not so good, as it has an error:
1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011
----------------------------------------------------------------------------------
North/1 dep 0000 0015 0030 0045 0100 0115 0130 0145 0200 0215 0230
Southwest arr 0030 0045 0100 0115 0130 0145 0200 0215 0230 0245 0300
Southwest/2 dep 0032 0042 0102 0112 0132 0142 0202 0212 0232 0242 0302
East arr 0102 0112 0132 0142 0202 0212 0232 0242 0302 0312 0332
East/2 dep 0130 0140 0200 0210 0230 0240 0300 0310 0330 0340 0400
Southwest arr 0200 0210 0230 0240 0300 0310 0330 0340 0400 0410 0430
Southwest/1 dep 0202 0217 0232 0247 0302 0317 0332 0347 0402 0417 0432
North arr 0232 0247 0302 0317 0332 0347 0402 0417 0432 0447 0502
North/1 dep 0245 0300 0315 0330 0345 0400 0415 0430 0445 0500 0515
3001 3002 3003 3004
--------------------------------------
Northwest dep 0017 0047 0117 0147
East arr 0052 0122 0152 0222
East dep 0120 0150 0220 0250
Northwest arr 0155 0225 0255 0325
Northwest dep 0217 0247 0317 0347
1000: Number of vehicles: 11
3000: Number of vehicles: 4
---------------------------------------
Total number of vehicles: 15
The marked departures are 3 minutes before arrival, which is impossible. The problem
is the multiple interval (10;20), as the program does not take them into
account when dispatching vehicles. This is a bug (#015). The workaround is to swap
them around (20;10) so that this does not happen:
## Networkplanner ##
route set 1 file:01.def interval:15 down:2
route set 2 file:02.def interval:20;10 down:2
route set 3 file:03.def interval:30 down:7 up:10
tp :tabulated Central
vehicles vehicles.def
Note that I had to adjust the departures on route 3, as the route 2 depatures has been shifted 10 minutes. (I could have adjusted the «up» and down values for route 2 instead.)
Central [A]
-- 12 22 -- 42 52 | 2 East
02 -- -- 32 -- -- | 3 East
Central [B]
00 10 -- 30 40 -- | 2 Southwest
-- -- 20 -- -- 50 | 3 Northwest
Central [C]
07 22 37 52 | 1 North
Central [D]
10 25 40 55 | 1 Southwest
1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011
----------------------------------------------------------------------------------
North/1 dep 0000 0015 0030 0045 0100 0115 0130 0145 0200 0215 0230
Southwest arr 0030 0045 0100 0115 0130 0145 0200 0215 0230 0245 0300
Southwest/2 dep 0032 0052 0102 0122 0132 0152 0202 0222 0232 0252 0302
East arr 0102 0122 0132 0152 0202 0222 0232 0252 0302 0322 0332
East/2 dep 0120 0140 0150 0210 0220 0240 0250 0310 0320 0340 0350
Southwest arr 0150 0210 0220 0240 0250 0310 0320 0340 0350 0410 0420
Southwest/1 dep 0202 0217 0232 0247 0302 0317 0332 0347 0402 0417 0432
North arr 0232 0247 0302 0317 0332 0347 0402 0417 0432 0447 0502
North/1 dep 0245 0300 0315 0330 0345 0400 0415 0430 0445 0500 0515
3001 3002 3003 3004
--------------------------------------
Northwest dep 0007 0037 0107 0137
East arr 0042 0112 0142 0212
East dep 0110 0140 0210 0240
Northwest arr 0145 0215 0245 0315
Northwest dep 0207 0237 0307 0337
1000: Number of vehicles: 11
3000: Number of vehicles: 4
---------------------------------------
Total number of vehicles: 15
Note that this network requires 1 vehicle more than the original one. If you are a public transportation undertaking, you may not see the value (for you) of the increased cost. But the passengers on the east- west route get a better interval.
Feel free to have a go at reducing the number of vehicles by 1, by tweaking the parameters.
The Super Combo(s)
An alternative is to split route 1 and 2 in two, and operate them separately. Then we can add route 3 to one of them, reducing the number of vehicles (as route 3 has a liberal amount of layover time).You may have seen this approach before, with routes 12 and 28 of the Lisboa tram network.
File: intervals/complicated.def
## Networkplanner ##
route set 1 file:01.def interval:30 down:17
route set 2 file:02.def interval:30 down:7 up:10
route set 3 file:03.def interval:30 down:22 up:20
route set 1a file:01.def interval:30 down:2 up:15
route set 2a file:02.def interval:30 down:17
tp :tabulated :merge[1;1a] :merge[2;2a] Central
vehicles vehicles-complicated.def
The support for multiple «:merge» arguments was added in v.0.0.3.
File: intervals/vehicles-complicated.def
=1000
1a U North/1;North 10
2a D Southwest/2;Southwest 2
2a U East/2;East 10
1a D Southwest/1;Southwest 2
=3000
1 U North/1;North 10
2 D Southwest/2;Southwest 2
3 U East/3;East 10
3 D Northwest/3;Northwest 10
2 U East/2;East 10
1 D Southwest/1;Southwest 2
The output:
Central [A]
07 -- 27 37 -- 57 | 2 East
-- 17 -- -- 47 -- | 3 East
Central [B]
-- 10 20 -- 40 50 | 2 Southwest
00 -- -- 30 -- -- | 3 Northwest
Central [C]
07 22 37 52 | 1 North
Central [D]
10 25 40 55 | 1 Southwest
1001 1002 1003 1004 1005
----------------------------------------------
North/1 dep 0015 0045 0115 0145 0215
Southwest arr 0045 0115 0145 0215 0245
Southwest/2 dep 0047 0117 0147 0217 0247
East arr 0117 0147 0217 0247 0317
East/2 dep 0130 0200 0230 0300 0330
Southwest arr 0200 0230 0300 0330 0400
Southwest/1 dep 0202 0232 0302 0332 0402
North arr 0232 0302 0332 0402 0432
North/1 dep 0245 0315 0345 0415 0445
3001 3002 3003 3004 3005 3006 3007 3008 3009
----------------------------------------------------------------------
North/1 dep 0000 0030 0100 0130 0200 0230 0300 0330 0400
Southwest arr 0030 0100 0130 0200 0230 0300 0330 0400 0430
Southwest/2 dep 0037 0107 0137 0207 0237 0307 0337 0407 0437
East arr 0107 0137 0207 0237 0307 0337 0407 0437 0507
East/3 dep 0120 0150 0220 0250 0320 0350 0420 0450 0520
Northwest arr 0155 0225 0255 0325 0355 0425 0455 0525 0555
Northwest/3 dep 0222 0252 0322 0352 0422 0452 0522 0552 0622
East arr 0257 0327 0357 0427 0457 0527 0557 0627 0657
East/2 dep 0310 0340 0410 0440 0510 0540 0610 0640 0710
Southwest arr 0340 0410 0440 0510 0540 0610 0640 0710 0740
Southwest/1 dep 0347 0417 0447 0517 0547 0617 0647 0717 0747
North arr 0417 0447 0517 0547 0617 0647 0717 0747 0817
North/1 dep 0430 0500 0530 0600 0630 0700 0730 0800 0830
1000: Number of vehicles: 5
3000: Number of vehicles: 9
---------------------------------------
Total number of vehicles: 14
It may look impressive (and indeed it was quite a job to get it right), but the result is network that is a nightmare to operate. Whenever something happens (as e.g. a derailment at Northwest on route 3), all three routes will be affected. The result, from a passenger perspective, will be delayed and/or missing departures on the entire network.
Multiple Intervals
You can set up the intervals in any way you want, but routes (directions of them) that are combined with a «vehicles» command must have the same interval. If you have multiple intervals, the mean value of all of them in the same series must be the same. (I.e. the same number of departures within the timeframe; whether it is one hour or more.) File: intervals/complicated-error.setup
## Networkplanner ##
route set 1 file:01.def interval:30 down:17
route set 2 file:02.def interval:30 down:7 up:10
route set 3 file:03.def interval:20 down:22 up:20
route set 1a file:01.def interval:30 down:2 up:15
route set 2a file:02.def interval:30 down:17
tp :tabulated :merge[1;1a] :merge[2;2a] Central
vehicles vehicles-complicated.def
The result, with an error message instead of the 3000-series:
Central [A]
07 27 37 -- 57 | 2 East
07 27 -- 47 -- | 3 East
Central [B]
10 20 -- 40 50 | 2 Southwest
10 -- 30 -- 50 | 3 Northwest
Central [C]
07 22 37 52 | 1 North
Central [D]
10 25 40 55 | 1 Southwest
The sections do not have the same accumulated intervals
1001 1002 1003 1004 1005
----------------------------------------------
North/1 dep 0015 0045 0115 0145 0215
Southwest arr 0045 0115 0145 0215 0245
Southwest/2 dep 0047 0117 0147 0217 0247
East arr 0117 0147 0217 0247 0317
East/2 dep 0130 0200 0230 0300 0330
Southwest arr 0200 0230 0300 0330 0400
Southwest/1 dep 0202 0232 0302 0332 0402
North arr 0232 0302 0332 0402 0432
North/1 dep 0245 0315 0345 0415 0445
1000: Number of vehicles: 5
---------------------------------------
Total number of vehicles: 5
[
Introduction |
Oslo Metro |
Oslo Tram |
Bergen |
Misc.
]
[
Misc. Intro |
Lisboa |
Railways |
Reindeer Expressed |
Intervals NEW
]