Haldigrat chair lift is two-way; near Niederrickenbach, CH. Source: local knowledge

Roads, features and access restrictions around Bueholzbach; near Dallenwil, CH. Source: local survey and GPS trace

Materialbahn at Fluehmatt; near Engelberg, CH. Source: local survey

Road and features Ristis-Fluehmatt; around Engelberg, CH. Source: local survey and GPS trace

Access restrictions and tolls on roads; around Engelberg, CH. Source: local survey

Names of paths at Fürenalp; near Engelberg, CH. Source: local knowledge and fuerenalp.ch website

Fix directly connected bridges at junction of Brünigstrasse and 1111; at Brünigpass, CH. Problem apparent on rendering.

Car parking at Kloster; in Engelberg, CH. Source: local knowledge and Bing aerial

Consistent tagging of pedestrian crossings around Chertsey Road/Hospital Bridge Road roundabout; near Twickenham, UK. Source: local knowledge

Clean up on Park Road near police station; in Teddington, UK. Source: local knowledge and Bing aerial

Improve alignment of Kingston Loop Line and Teddington station (eliminate odd kink just north of A313 bridge); in Teddington, UK. Source: local knowledge and Bing aerial

Align bridges properly with Edwin Road; in Twickenham, UK.

London Road dual carriageway between Whitton Road and Arragon Road; in Twickenham, UK. Source: local knowledge and Bing aerial

Footways through Heath Road railway bridge; in Twickenham, UK. Source: local knowledge and Bing aerial

Simplify Heath Road/King Street junction; in Twickenham, UK. Source: local knowledge and Bing aerial

Dual carriageway Heath Road between Lion Road and Cross Deep; in Twickenham, UK. Source: local knowledge and Bing aerial

Am Dürrbach bridge should not end on a highway; in Engelberg, CH. Source: visible on rendering

P.Chapman in Colne Road, 2 sections as multipolygon; in Twickenham, UK. Source: local knowledge and Bing aerial

Land use boundaries along Heath Road between Lion Road and Copthall Gardens; in Twickenham, UK. Source: local survey and Bing aerial

Buildings and features along north side of Heath Road between Clifden Road and Copthall Gardens; in Twickenham, UK. Source: local survey and Bing aerial