[Pirates of Drinax] Traffic

Discuss the Traveller RPG and its many settings
Pyromancer
Banded Mongoose
Posts: 336
Joined: Fri Apr 11, 2008 6:12 pm
Contact:

[Pirates of Drinax] Traffic

Postby Pyromancer » Fri Jul 20, 2018 10:12 pm

Is there any official information on the typical traffic in the sector? How many and what kind of ships fly the trade routes? How much traffic does each of the systems see?
Putraack
Stoat
Posts: 69
Joined: Thu Jul 07, 2011 3:23 am

Re: [Pirates of Drinax] Traffic

Postby Putraack » Sun Jul 22, 2018 6:01 pm

Dunno, this bugged me, too. I hope you get an answer.
PsiTraveller
Greater Spotted Mongoose
Posts: 975
Joined: Thu Dec 04, 2014 11:47 pm

Re: [Pirates of Drinax] Traffic

Postby PsiTraveller » Mon Jul 23, 2018 2:44 am

Gurps Traveller takes a good stab at this in Far Trader. At 5-10 million credits a year in trade there is about 0-5 tons per day of cargo available, 10-50 a week.

There are several pages of charts to go through to develop the Bilateral Trade number between worlds.

If you go by the Starport quality and how much fuel they are supposed to produce you get a pretty large volume of shipp tonnage running around.
A Class C Starport has to produce 100 Tons of fuel per day. This would supply 500 tons of ships Jumping 2 hexes. Subtract percentage to supply fuel for the power plants and you could say it is 400 tons of ships per day? 450?

Class B is 1000 tons of fuel per day, so that would supply 4000- 5000 tons of ship per day with fuel. You could reduce that if you were looking at fuel supply for the system ships as well, but as a rough guide it gives a bit of a basis for the discussion. If the starport has to produce that much refined fuel (system ships could use unrefined), there must be a demand for that much fuel per day.
Pyromancer
Banded Mongoose
Posts: 336
Joined: Fri Apr 11, 2008 6:12 pm
Contact:

Re: [Pirates of Drinax] Traffic

Postby Pyromancer » Mon Jul 23, 2018 3:54 am

My hope was that someone - preferable someone designing the campaign - had already crunched the numbers and made assumptions. And I wouldn't be surprised if the information WAS somewhere in the books; I keep finding information in places I didn't expect it.
tjoneslo
Stoat
Posts: 63
Joined: Mon Oct 29, 2007 11:21 pm

Re: [Pirates of Drinax] Traffic

Postby tjoneslo » Mon Jul 23, 2018 12:11 pm

Pyromancer wrote:
Fri Jul 20, 2018 10:12 pm
Is there any official information on the typical traffic in the sector? How many and what kind of ships fly the trade routes? How much traffic does each of the systems see?
I've taken the GURPS Traveller: Far Trader rules, added a dash of a few other rules, ran the T5 Second survey data through a python program, generated a huge volume of data, and dump it all into the wiki:

https://wiki.travellerrpg.com/Trojan_Re ... r/economic
https://wiki.travellerrpg.com/images/0/ ... Sector.pdf

The columns you want from the first page are: Trade (MCr/Year), Passengers / Year, and SPA Population. The map shows where the trade flows. It's not official, and if you have other rules you'd like me to add to the list I can do that as well. I've added the Book7/T5 speculative trade rules as well but still need to post that update.
Join the Librarians, the true power in the universe: The Traveller Wiki
Pyromancer
Banded Mongoose
Posts: 336
Joined: Fri Apr 11, 2008 6:12 pm
Contact:

Re: [Pirates of Drinax] Traffic

Postby Pyromancer » Mon Jul 23, 2018 1:25 pm

tjoneslo wrote:
Mon Jul 23, 2018 12:11 pm
I've taken the GURPS Traveller: Far Trader rules, added a dash of a few other rules, ran the T5 Second survey data through a python program, generated a huge volume of data, and dump it all into the wiki:

https://wiki.travellerrpg.com/Trojan_Re ... r/economic
https://wiki.travellerrpg.com/images/0/ ... Sector.pdf

The columns you want from the first page are: Trade (MCr/Year), Passengers / Year, and SPA Population. The map shows where the trade flows. It's not official, and if you have other rules you'd like me to add to the list I can do that as well. I've added the Book7/T5 speculative trade rules as well but still need to post that update.
Thank you, that's fantastic!

Is this only for direct trade? The traffic passing through between the Hierate and the Imperium would also be interesting, but I have no idea how you would calculate it.
tjoneslo
Stoat
Posts: 63
Joined: Mon Oct 29, 2007 11:21 pm

Re: [Pirates of Drinax] Traffic

Postby tjoneslo » Mon Jul 23, 2018 11:51 pm

This is only for the direct trade between worlds. I would need to dig up the raw data files to find the trade between specific worlds and sum them. The output is trying to balance the volume of data (which is very large) with easy to read/understand. I should probably read though a number of data visualization texts to see if there are better ways to present this. Suggestions welcome.
Join the Librarians, the true power in the universe: The Traveller Wiki
steve98052
Greater Spotted Mongoose
Posts: 936
Joined: Tue Oct 01, 2013 6:13 am
Location: near Seattle

Re: [Pirates of Drinax] Traffic

Postby steve98052 » Tue Jul 24, 2018 5:27 pm

One point about trade volumes is that major world pairs will have some long-distance trade. There's probably a measurable volume of trade between Mora and Capital, for example.

Something that the bilateral trade number system didn't bother to model is aggregated long-distance trade. There may not be much trade between Esalin and Capital, but the total trade between Jewell Subsector and Core Subsector might be enough to fill a few freighters per year. It might make sense to run the trade program on non-adjacent subsectors, using the total population and the highest trade modifiers that apply, to get a feel for the volume of long-distance trade.
User avatar
NOLATrav
Banded Mongoose
Posts: 316
Joined: Sun Sep 06, 2015 7:42 pm
Location: Crescent City

Re: [Pirates of Drinax] Traffic

Postby NOLATrav » Tue Jul 24, 2018 5:40 pm

Trade at the subsector level is an interesting idea.
steve98052
Greater Spotted Mongoose
Posts: 936
Joined: Tue Oct 01, 2013 6:13 am
Location: near Seattle

Re: [Pirates of Drinax] Traffic

Postby steve98052 » Tue Jul 24, 2018 5:54 pm

If I dig through Far Trader, I might be able to come up with a "subsector trade number". But that means a fair amount of study.
tjoneslo
Stoat
Posts: 63
Joined: Mon Oct 29, 2007 11:21 pm

Re: [Pirates of Drinax] Traffic

Postby tjoneslo » Thu Jul 26, 2018 11:25 am

https://wiki.travellerrpg.com/Trade_map ... l_Analysis

I captured the external trade at the sector level. That is, how much trade in each sector goes outside of the sector. Based upon internal review of the data, I would say most (99%) of that goes into the surrounding sectors, and the same would be true at the subsector level too.

I've added to the wish list the idea of capturing the source/target of the external trade and finding a way of mapping that.
Join the Librarians, the true power in the universe: The Traveller Wiki
User avatar
paltrysum
Lesser Spotted Mongoose
Posts: 770
Joined: Mon Mar 20, 2017 11:16 pm
Contact:

Re: [Pirates of Drinax] Traffic

Postby paltrysum » Thu Jul 26, 2018 4:55 pm

Very useful data! Thanks, tjoneslo. Wow. The Solomani Rim represents the single largest market. Makes sense, I suppose, but somehow I imagined Core holding more sway. Sort of colors the OTU in a new light.
My published Traveller adventures on DriveThruRPG:
https://www.drivethrurpg.com/browse.php ... %20Griffen
JMISBEST
Lesser Spotted Mongoose
Posts: 772
Joined: Sat Jun 11, 2016 6:25 am

Re: [Pirates of Drinax] Traffic

Postby JMISBEST » Fri Jul 27, 2018 12:20 pm

I just let the dice decide. Its more fun that way

Plus with me making the dice rolls for my players, combined with my famous luck with the dice, means that any ship, no matter its size, is guaranteed to have a cargo worth almost any risk
tjoneslo
Stoat
Posts: 63
Joined: Mon Oct 29, 2007 11:21 pm

Re: [Pirates of Drinax] Traffic

Postby tjoneslo » Fri Jul 27, 2018 12:49 pm

Jim McLean, the author of GT:FT, expressed regret that there wasn't more words in the book on the speculative trade system. On other Traveller Forums, the complaint is trade system written in GT:FT doesn't match the reality of the Traveller Universe. Specifically the Gravity trade model used as the basis of the GT:FT trade system relies, quite heavily, on communications that are faster than goods can be shipped. And communication at the speed of travel is one of the defining characteristics of the Traveller Universe.

In these discussions, I've made the point that the Third Imperium is built around the idea of fostering trade between worlds. There are a number of Imperial supported functions (x-boat network, office of calendar compliance, LIC licences, Imperial claims to space but not worlds) to make trade work better than might be expected.

In either case, this is all background for the Traveller Universe. The question of how big, and busy, is the star port on the world your players are visiting is an interesting question of a number of Referee's. But not something that determines the flow of your adventures.
Join the Librarians, the true power in the universe: The Traveller Wiki

Who is online

Users browsing this forum: No registered users and 59 guests