OSMosis
Case studies

Ten walks, checked against Google Maps

Accuracy check · Dubai, Abu Dhabi, Singapore · 5 November 2026

The question

Can walking distances measured on open map data be trusted for planning?

The place and the method

Ten walks between the same start and end points, measured in OSMosis and asked of Google Maps for walking directions on 5 November 2026. OSMosis walks at 4.8 km/h unless another pace is chosen; Google Maps uses its own pace, so distance is compared first.

What was measured

WalkOSMosisGoogle MapsDifference
Downtown Dubai: largest residential building to Burj Khalifa / Dubai Mall station827 m850 m−2.7%
Downtown Dubai: housing at the edge to the same station3,121 m2.6 km+20.0%
Dubai Marina: largest residential building to DMCC station391 m500 m−21.8%
Dubai Marina: housing at the edge to DMCC station2,788 m2.8 km−0.4%
Deira: largest residential building to Salah Al Din station955 m900 m+6.1%
Deira: housing at the edge to Salah Al Din station2,030 m2.2 km−7.7%
Al Ras: Al Ahmadiya School to Al Fahidi Fort, across the Creek2,768 m1.7 km+62.8%
Al Ras: Al Ras Public Library to Al Ras metro station418 m1.0 km−58.2%
Abu Dhabi downtown: housing at the edge to a bus stop2,651 m2.3 km+15.3%
Singapore CBD: housing at the edge to Shenton Way station2,144 m2.3 km−6.8%

What it shows

Half agree within 15%. 5 of the 10 walks agree within 15% in distance; Google Maps gives distances to the nearest 100 m above 1 km, so small differences are rounding.

Where they differ, most reasons are known. Google Maps uses indoor passages through malls and towers (about 400 m indoors on the Downtown edge walk) and the abra ferry across Dubai Creek, and its Dubai Marina route enters DMCC station by the JLT exit; OSMosis walks the mapped outdoor streets and paths only, covered bridges and walkways included, which is the walk people make in the heat. No single reason was found for the Abu Dhabi walk.

One to check on site. In Al Ras the straight line from the library to the station is about 270 m; the two tools take different lanes through the souk, and the right one is for a site visit to settle.

What it means for planning

Limits

Questions

How accurate are OSMosis walking distances?

In a check of 10 walks in Dubai, Abu Dhabi and Singapore on 5 November 2026, 5 agreed with Google Maps within 15% in distance; the larger differences came from Google using indoor passages or the abra ferry, entering a station by a different exit, or taking different lanes through the souk; OSMosis walks outdoors only.

Does OSMosis count indoor routes through malls?

No. OSMosis walks the mapped outdoor streets and paths, covered bridges and walkways included.

Related

The same readings can be made for any place in OSMosis: see how.

Map data © OpenStreetMap contributors and other open datasets.