The IRPUD inland waterway network is stored in three ASCII files:

The following table shows the contents of the file WATERLINK.DAT:

Notes:

ISO country code 1 indicates the ISO code of the country in which the link is located. If a link represents a border river, ISO country code 2 is used to indicate that the link is also part of the waterway network of the neighbouring country.

Link type and name give general information on all links. Port links are links representing docks/facilities of a port. Similar to this, lock or elevator links are links representing lock and elevator facilities, respectively. If a link represents a lock link, chambers indicates the number of parallel chambers. In the case of lock systems where there is no information whether there are locks or double locks, chambers has a value of 3. If a link represents a lock system with several locks in line with each one chamber only and with unknown precise location, locks indicates the number of locks in line.

Future link category indicates the future link category, i.e. if the waterway is under construction or improvement, while present link category indicates the current link category. If a waterway will not change its waterway class, present and future link category will have the same value. However, information on improvements/construction are not available for all TEN links. In these cases future link category will have a value of zero.

TEN category and TEN alignment give information on those links which are included in the "Trans European Transport Network Outline Plan, Section Inland Waterways" and are taken from the "Joint Decision of the European Parliament and of the Council" published in the Official Journal of the European Communities (L228, 9 September 1996). A planned TEN link in association with unknown alignment (TEN category = 2 and TEN alignment = 2) represents a planned inland waterway link to be constructed, whereas a planned TEN link with known alignment (TEN category = 2 and TEN alignment = 1) represents improvements on existing waterways (e.g. extension, widening).

Border links are representing real border crossing of a river. If a river is a border river, there will be no border link in between.

The following table shows the contents of the file WATERNODE.DAT:

Bytes	Length	Type	Contents
1-10	10	Real	Node-ID xxx.yyyy   xxx = Region-ID (see note)   yyyy = Node number   0001 ... Node number in region
11-14	4	Character	ISO country code 1 (see note)
15-18	4	Character	Region code 1 (see note)
19-22	4	Character	ISO country code 2 (see note)
23-26	4	Character	Region code 2 (see note)
27-36	10	Integer	X coordinate (m)
37-46	10	Integer	Y coordinate (m)
47-50	4	Integer	Node type (see note)   1 = Border node   2 = Waterway intersection   3 = River mouth   4 = Seaport   5 = Lock   6 = Double lock   7 = Elevator   8 = Safety gate   9 = Changing link attributes   10 = Lock system node   11 = End node   12 = Port access node   13 = Dam without locks   14 = Port node   15 = Border river node
51-56	6	Integer	Port number (see note)
57-89	32	Character	Port name (see note)

Notes:

The node-ID is a unique number for each node in the network. The first three digits indicate the number of the region in which the node is located. ISO country code 1 is the ISO code of the country in which the node is located. Region code 1 is a four-character acronym of the region. The regions are regions of the system of regions defined for the STREAMS and SASI projects. They correspond largely to NUTS-2 regions defined by Eurostat plus equivalent extensions outside the European Union. A more detailed description of the system of regions is available.

Normally only one ISO country code and region code is associated with a node. However, in the case of border nodes (node type = 1) or if a node is located along a border river (node type = 15), ISO country code 2 and region code 2 are used to indicate that the node is also part of the waterway network of the neighbouring country. Border nodes are nodes where rivers cross a border, whereas border river nodes are nodes along a border river.

With the exception of river mouths, seaports, port nodes and end nodes all other nodes may have also entries in ISO country code 2 and region code 2 if they are located along a border river.

Lock nodes represent locks with one chamber, double locks represent locks with two parallel chambers, and lock system nodes represent several locks in line with unknown precise location and unknown number of chambers per lock.

Portnumber is a unique number for each port of international importance that is included in the waterway network. Portname is the name of this port.

The following tables give information on the file WATERARC.DAT. This file contains information on the alignment of the inland waterway links between nodes by the coordinates of its vertices. This information is used for mapping. For each link, the file contains a block of records. Each block of records consists of a header record and one record for each vertex of the link. The number of records used for each link depends on the number of the vertices as each vertex is written in a separate record.

The header record has the following format:

Bytes	Length	Type	Contents
1-10	10	Integer	Link-ID (see WATERLINK.DAT)
11-20	10	Real	Node-ID, from-node (see WATERNODE.DAT)
21-30	10	Real	Node-ID, to-node (see WATERNODE.DAT)
31-35	5	Integer	Number of vertex coordinate pairs following

The records containing the vertex coordinates have the following format:

Bytes	Length	Type	Contents
1-10	10	Integer	X coordinate (m)
11-20	10	Integer	Y coordinate (m)

© 2001 IRPUD

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