Highlighting differences between TIGER and OpenStreetMap, referenced for Bing imagery to help establish which is correct. Click for more information about a feature.

When zoomed in 9 or above it it shows differences between all roads in TIGER and all roads in OSM. Where the alignment is good, the TIGER data is obscured almost entirely by the off-white OSM roads except for a thin colored 'casing'. When The geometry of TIGER and OSM as not aligned, then then tiger roads are shown in a color that relates to their classification. This either means that the road is missing from OSM or that the alignment of one of them is wrong.

When zoomed out (zoom 0-8) the map only shows S1100, S1630 and S1200 from TIGER and motorway/motorway_link, trunk, trunk_link, primary and primary_link from OSM. At these zoom levels colored lines are more likely to indicate that there is a difference in classification between OSM and TIGER. In particular, a large number of orange lines may mean that major TIGER roads are encoded in OSM using a lower classification, often 'secondary'.

Administrative boundaries are show only where this information is available as OSM as ways — relations are not currently being honored.

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