The aim of ECS is to ensure a maximum amount of compatibility and flexibility for the "newcargoes" and "newindustries" features of TTDPatch. This is achieved by the design of a well-structured scheme of additional cargoes and industries for the different climates of TTD.

While ECS is dealing with the definition and implementation of cargoes, the implementation of appropriate industries for these cargoes will be a matter of individually created "industry sets" (.grf files) which may implement a quite different behaviour in terms of industry production and/or cargo parameterizing (i.e. different cost schemes). Because of this, mentioning of particular "industries" in this text is only to give an example.

ECS is based loosely on common "Industrial Classification Lists" [1] and thus reflects real situations of production and transportation.

What are ECSīs default cargoes and why had they been chosen?

• raw materials (mined and excavated materials as well as agricultural products)
• manufactured products (intermediary products between industries)
• consumer goods (to be delivered to town buildings)

To suit TTD best, all additional cargo types (and hence industries) should be enhancing game style, they should be distinctive (i.e. for a special region or country), visual attractive (noticeable cargo (e.g. open wagons), succinct loading facilities) and it should be possible to link them into a hierarchical structure (no useless parallelism between different cargo types, links to different levels of the cargo vector hierarchy, etc.).

In addition, its structure should allow for replacing single cargo types as well as sets of them incl. their depending industries (cargo vectors) allowing for different scenarios supplied by appropriate .grf files.

1. Special Cargo

2. Raw Materials

2.1 mined and excavated materials

Sand and limestone are excavated materials which are needed for different types of new industries (e.g. glass works and cement industries). To make things more interesting, excavating sites could be created either in the mountains (for rocky materials) or placed in the low lands (sand, clay, ...).

Potash is an important mined raw material especially in Russia, Canada and Germany and also highly interesting as a TTD cargo: itīs the origin of the fertilizer chain which may establish a feedback loop to farms.

Sulphur is another important raw material for the chemical industry. Rather than introducing yet another excavating industry for it, "sulphur" may be also introduced as a by-product of CO₂ removal in power plants.

2.2 agricultural, forestry and fishing products

This sub-class is one of the most important, both in real life and in TTD, because farms characterize TTDīs landscape and the farming products are highly varied and visually attractive.

Because the origins of these products arenīt only farms but also plantations, forests or the sea, there are quite a couple of items in this class.

Cereals may include not only grain crops like in original TTD, but also other edible products like pulses (lentils, grams, soybeans, peas, ...), nuts or roots and tubers, although the most important product may well be the different grain crops. Livestock is a traditional product in TTDīs agriculture. Fruit is another default TTD agricultural product formerly only available in sub-tropical climate. Oil seeds are an important group of farming products representing crops grown for their vegetable oil and used in food processing as well as for industrial purposes (producing chemicals and fuel).

The non-edible types of farming products are represented by wool which is produced by (animal) farms and transported to textile mills, and by fibre crops (cotton, flax, hemp, jute, ...) used by textile mills as well.

Wood is a default TTD product delivered to saw mills.

Fish is a unique resource. "Fishing grounds" are water-based and as such need vessels to transport this cargo in the first place. The already available reefer wagons and trucks would benefit as well from the introduction of this cargo. Fish is delivered to the food processing industry.

2. Manufactured Products

Steel and paper are original TTD cargo types.

Glass is a new interesting preliminary product, mainly for the automotive industry (together with steel and dyes) but would also be needed for breweries (food production). Glass works would need sand and potash to produce glass.

Wood products are produced by saw mills. Their products would be used by the "building materials industry" (e.g. building centers in towns would use e.g. sub-class 'timber'), and also by paper mills (e.g. sub-class 'woodchips' and/or 'pulp') or furniture factories (using e.g. sub-class 'plywood').

Dyes is ECSīs example from the large palette of chemical plantsī products. Produced from "refined products", this cargo type is delivered to diverse industries, namely automotive plants and paper mills. Transportation could be by tankers or by box cars (liquid or solid dyes).

Fertilizer is a second product of chemical plants, needed by farms to increase production. Produced from potash and/or sulphur itīll be transported by hoppers (bulk) or box cars (sacked, palletized). In addition, tankers could be used as well.

Refined products are undifferentiated products of refineries (besides their main product of petrol) and are delivered to the chemical industry. These products are mostly petrochemical liquids or gases usually transported by tankers.

3. Consumer Goods

This class is made up from products delivered directly to towns which should have special buildings accepting these cargo types.

Goods is a general cargo type accepted by default in towns. Usually, thereīll be different sub-types of this cargo, made available by cargo sub-texts.

The common denominator of this cargo is its transportation by box vans, including:

• - goods from furniture plants (furniture),
• - goods from printing works (printings),
• - goods from textile mills (textiles).

Food is produced from various agricultural products like grain, livestock, fruit, but also from oil seeds or fish. Itīs sent to towns in normal or refrigerated box cars and/or reefers. This cargo type also includes beverages like e.g. the sub-type "beer" produced in special (food) factories like e.g. a "brewery".

Vehicles and machinery are yet another important consumer good, produced in "automobile plants" or "machine factories" from steel, glass and dyes.

Petrol is produced by refineries and sent to towns by tankers.

Bricks is a preliminary product for the "building industry" (building centers in towns). Brick works are usually situated in the lowlands using local "clay" as implicit raw material but needing coal to fire their kilns. Bricks may be transported by any open wagons.

Cement is produced from lime stone in cement works. This is another preliminary product for the "building industry". Cement is usually transported by special silo-wagons.

4. Implementation

The easiest way of ECS implementation in TTDPatch is by means of a Cargo Translation Table which essentially consists of a number of cargo labels which, together with cargo slot and ID numbers, are given in the table below.

In this way, the vehicle grf file doesn't need to know or care which cargo slot and cargo bit a certain cargo type uses, it can define its own ID for each cargo that it wishes to support, and thus be independent of both what cargo types are really available in the game and what slots/bits they use.

The following table lists all cargo types for the temperate climate together with their accompanying industries.

ECS Default Cargoes
1. Special cargo
label	ID	bit	cargo type	wagons	sources	preliminary products	destinations
PASS	00	00	passengers	coaches	towns	n/a	towns
MAIL	02	02	mail	box cars, mail cars
TOUR	1F	1F	tourists	coaches
VALU	0A	0A	valuables	security cars	bank		bank
2. Raw materials
2.1. mined and excavated materials
COAL	01	01	coal	low side wagons, gondolas, hoppers	coal mine	n/a	power plant, steel mill, brick works
OIL	03	03	crude oil	tankers	oil well, oil rig		refinery, power plant
IORE	08	08	iron ore	gondolas, hoppers	iron ore mine		steel mill
POTA	10	10	potash	gondolas, hoppers box cars	potash mine		chemical plant
SAND	11	11	sand	gondolas, hoppers	sand pit		glass works cement works
LIME	1E	1E	limestone	gondolas, hoppers, flat cars	lime quarry		cement works building center
SULP	1B	1B	sulphur	gondolas, hoppers	sulphur mine power plant	n/a (coal)	chemical plant
2.2. agricultural, forestry and fishing products
LVST	04	04	livestock	box cars	(animal) farm	n/a	food industry
CERE	06	06	cereals	gondolas, hoppers	farm		brewery, food industry
WOOD	07	07	wood	flat cars	forest		saw mill
FRUT	0D	0D	fruit	reefers, box cars	plantation		food industry
FISH	0E	0E	fish	ships, reefers	fishing grounds		food industry
WOOL	0F	0F	wool	box cars	(animal) farm		textile mill
OLSD	16	16	oil seeds	hoppers	plantation / farm		food industry, refinery
FICR	1D	1D	fibre crops	hoppers, flat cars, box cars			textile mill
3. Products
label	ID	bit	cargo	wagons	sources	preliminary products	destinations
STEL	09	09	steel	flat cars	steel mill	iron ore + coal	automobile / machinery plants
PAPR	0B	0B	paper	gondolas, flat cars	paper mills	wood products + refined products	printing works
GLAS	12	12	glass	flat cars box cars	glass works	sand + potash	automobile plant food industry (brewery)
WDPR	13	13	wood products	flat cars gondolas	saw mill	wood	building center paper works furniture plant
DYES	14	14	dyes	tankers, box cars	chemical plant	refined products	automobile plant textile mill printing works
FERT	15	15	fertilizer	box cars, gondolas, hoppers		sulphur | potash	farms
RFPR	17	17	refined products	box cars, gondolas, hoppers, tankers	refinery	crude oil	chemical plant paper mill
4. Consumer goods
label	ID	bit	cargo	wagons	sources	preliminary products	destinations
GOOD	05	05	goods	box cars	furniture plant printing works textile mill	wood products (+ glass) paper + dyes (fibre crops | wool) + dyes	towns
FOOD	0C	0C	food	reefers, box cars	food industry	fish, livestock, grain, fruit, oil seeds	towns
VEHI	18	18	vehicles, machinery	flat cars, auto transporters	automobile plant	steel + glass + dyes	towns
PETR	19	19	petrol	tankers	refinery	crude oil | oil seeds	towns
BRCK	1A	1A	bricks	open cars, flat cars	brick works	coal	building center
CMNT	1C	1C	cement	silo wagons	cement works	lime (+ sand)

[1] References:

- International Standard Industrial Classification (ISIC), Revision 3,
- NACE Rev. 1.1 - Statistical Classification of Economic Activities in the European Community,
- North American Industry Classification System (NAICS).