Metainformaçao

REFERENCE PERIOD: &nbsp; The length of time for which data are collected, e.g. a specific day, month or year.
ELECTRIFIED TRACK: &nbsp; A track with an aerial contact wire or conductor rail for electric traction.
GAUGE: &nbsp; The distance between two rails measured between the inner sides of the top of the rails on a track.
ELECTRIFIED LINE: &nbsp; A line with one or more electrified main tracks. Sections of lines adjacent to stations that are electrified only for shunting and not electrified as far as the next stations are considered to be non-electrified lines.

Metadata

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Line extensions and explored railways (km)

Characteristic	Description
Name	Line extensions and explored railways (km) by Electric power type, Gauge type and Type of railway; Annual
Regularity	Annual
Source	Statistics Portugal, Rail infra-structure survey
First available period	2000
Last available period	2022
Dimensions	Data reference period Geographic localization (Portugal) Electric power type Gauge type Type of railway
Concepts	REFERENCE PERIOD: The length of time for which data are collected, e.g. a specific day, month or year. ELECTRIFIED TRACK: A track with an aerial contact wire or conductor rail for electric traction. GAUGE: The distance between two rails measured between the inner sides of the top of the rails on a track. ELECTRIFIED LINE: A line with one or more electrified main tracks. Sections of lines adjacent to stations that are electrified only for shunting and not electrified as far as the next stations are considered to be non-electrified lines.
Measure unit (symbol)	Kilometre (km)
Power of 10	0
Observations
Last update date	14/08/2023