British Sprints 2022: Leeds University
Mapping and Terrain Notes
Multi-level Situations
The Leeds University map has been drawn to the specifications described in the International Specification for Sprint Orienteering Maps 2019 version 2 (ISSprOM2019-2). These contain some minor, but important changes to the mapping conventions used in the previous version of ISSprOM. It is highly recommended that you make yourself aware of the specifications and their use. You can find a pdf of the specifications on the IOF Mapping page or from the link here:!As4LDA11gDVmgvJrkvfBqOO9PCoFCQ
These specification changes have changed the way in which multi-level structures are depicted and the IOF has published guidelines on their use, which can be found on the same IOF mapping page or from the link here:!As4LDA11gDVmgvJtteKHbteK-YrFXg. These guidelines have been used at Leeds University for
the multi-level areas.
Most importantly the new triangular symbol (512.1) is used for mapping bridges or other areas that can be passed under. The examples below show a simple situation highlighting use of the 512.1 symbol.
In the above example, it is possible to run on the lower level, under the bridge, as shown in A, or along the upper level across the bridge, B. It is not possible to transition between levels as shown in the example C. The 512.1 symbol therefore is an impassable barrier on the upper level, but passable on the lower level, with the points of the triangles pointing towards the lower level.
Note that the small gap (0.15mm) between the uncrossable N-S boundary running towards the triangles is as per ISSprOM2019-2 specifications and does not indicate a gap or break in a wall that can be passed through. In areas where the passageways are narrow, the dashed lines indicating barriers on the lower level have been omitted, as described in the IOF guidelines document.
Similarly elevated walkways, where it is possible to run on two levels, are mapped using the 512.1 symbol. In the simple example below, there is an upper level walkway on a building. You can run along the upper walkway (D), or into the recess into the building, below the walkway (E), but as with example C above, it is not possible to transition between levels (F). Note that in areas where the walkways are narrow, the dashed lines indicating the edges of buildings on the lower level may be omitted (as per ISSprOM2019-2) and the area in which it is possible to run on two levels is then indicated only by the 512.310 striped symbol.
Leeds University has a long tunnel running below some of the campus buildings which is a viable route. This could not be depicted fairly under the previous mapping specifications, so was not used for the last event here at JK2016. The new specification allows it to be shown clearly, albeit with some simplification, as detailed below. The extract below is shown at 200% of mapped scale at 1:4000.
Out of Bounds areas
Competitors are reminded of the usual out of bounds and impassable symbols:
For the purposes of clarity, some uncrossable fences may be mapped without the tags, making them look like uncrossable walls. The control descriptions will indicate the feature correctly.
Competitors are reminded it is not permissible to punch controls from the ‘wrong side’ of an impassable feature, or to reach over or through any impassable feature (including flower beds) to punch a control.
Flower Beds and other impassable vegetation
There are numerous flowerbeds around the campus, which have been mapped using the 520 ‘Area that shall not be entered’ symbol (Olive green) and should not be crossed or passed over. Some of the flowerbeds are recently planted and may not be immediately obvious. Where there is ambiguity which may result in competitors inadvertently crossing the flowerbeds, they will be taped. However, there are simply too many flowerbeds to tape them all and it is the competitor’s responsibility to read the map correctly. Anyone who crosses flowerbeds or impassable vegetation will be disqualified. 
Newly planted flowerbeds defined as out of bounds can usually be identified by the chipped wood mulching that has been laid on all of these beds (see photos below). The left hand example below will be taped, the right hand one will not.

Moveable planters as shown in the photo below have not been mapped
Where the vegetation is of significant height (greater than 0.5m) rather than planted flowerbeds, it has been mapped using the 411 Impassable vegetation symbol. In cases where there is ambiguity, the most appropriate symbol for the majority of the area of vegetation has been used. Both impassable vegetation and olive green areas are strictly out of bounds.
Hedges that must not be crossed have also been mapped using the 411 impassable vegetation symbol.
There is a large area of wildflowers which will be encountered by the longer courses. This will be depicted by an Out of Bounds overprinted area on the maps and will be taped. You must not cross this area.
There are other areas that have been left to grow wild. These are not mapped as out of bounds, but it will be quicker and more pleasant not to take direct lines through these areas. They are full of nettles and thistles.
There are some beehives in the area near the mapped tunnel (see map extract above). This is shown as out of bounds, but competitors are warned to give these a wide berth. There is a control 20m from the hives, but no routes on legs should get closer than this. Competitors with children taking part should warn them to keep clear.
The 501 light brown area symbol has been used to map areas where there is light traffic. It does not mean that these areas are necessarily traffic free! Please remain vigilant when crossing roads mapped with this symbol. Some junior courses will cross roads
mapped with this symbol that will be open to low speed, campus traffic.
The darker brown symbol is used where the traffic flow is substantially greater. Junior courses will not cross such roads.
There is one short (20m) section of road with a junction that can be dangerous to cross the main road at this point (see:, it is mapped with the darker beige and overlaid with the 709 out-of-bounds symbol. Senior courses may
have legs requiring the main road to be crossed. You must not cross at the point indicated by the out of bounds. This will not be taped.
Canopies/covered areas
We have deviated marginally from the IOF guidance on canopies, which indicates that any covered areas not passable in 4 perpendicular directions should be mapped as buildings. Instead, we have mapped the majority of shelters, bike racks, canopies etc using the 522 canopy symbol and used the 515 uncrossable wall symbol in conjunction with these to indicate the restrictions to running direction, as shown in examples G, H and I below. If a canopy is impassable from all four directions (e.g. a completely enclosed bike rack cage), it has been mapped as a building, as shown in example J.
Newly planted trees on Woodhouse Moor have not been mapped, however newly planted trees on the main
University campus have been mapped where they are more distinct.
Unmapped features
Temporary or changeable structures and features such as “Garden style” sun-canopies, picnic and other benches, Bike racks (with or without attached bicycles) and bike lockers (see examples in the images below) are not mapped. The only exception to the above is that large, permanent, picnic benches on Woodhouse Moor (only) have been mapped.