ISOM front page  Map style index  Text index  Land forms index  Rock and boulders index  Water and marsh index  Vegetation index  Man-made features index  Overprinting and technical symbols index  OCAD symbols index  email to author

Narrow ride 509

See Also...Wide Ride  508   ISOM Index  Man-made features index    previous   next

This page contains content from ISOM2000   This page contains content from Ashby Mapping  Ski-O symbol  Replaced in MBO symbols  revision 05/00


509 Narrow ride

A distinct ride, less than ca. 5 m wide. A ride is a linear break in the forest (usually plantation) which does not have a distinct path along it. Where there is a path along a ride, symbols 507 or 508 should be used in place of symbol 509.

Colour: black.

Line width 0.14mm, line length 3.0mm, gap 0.5mm

ISOM 1990 Definition

As ISOM 2000 but line width was 0.125mm

OCAD Methods

Defined as line symbol 509.0. Can be drawn with any tool but bézier or straight line modes are preferable.

If the bézier tool is used, care must be taken as gap spacing is dependent on location of nodes and handles. See bézier topic for more information.

Drawing Considerations

See minimum dimensions but specifically - shortest dashed line: at least two dashes.

Pictorial Descriptions

- BOF Rules, Appendix One

A clearly visible linear gap in the forest.

See visible path junction

Click to go to the top of this page

International Specification for Orienteering Maps produced by the International Orienteering Federation
OCAD produced by Hans Steinegger Software. © 1988-1999 Hans Steinegger. ® OCAD is a registered trademark of Hans Steinegger
This document has been written and coded by Peter Hornsby of Ashby Mapping
Apologies for any mistakes and errors; please inform details of any problems, thanks.
Produced for the Ashby Mapping internet site on 20 November 1997 and 1 December 1999  ©1997-2000 Ashby Mapping
Revised 28 December 1999, 23 March 2000