OpenStreetMap data quality enrichment through awareness raising and collective action tools—experiences from a European project

Figures & data

Table 1. Relevant information (tag values) in OSM data for routing and navigation of people with limited mobility, adapted from Neis and Zielstra (2014).

Parameter	OSM Tag	Unit
Sidewalk	sidewalk = left|right|yes|no|both
Sidewalk, width	sidewalk(:left|:right):width = *	(m)
Sidewalk, surface	sidewalk(:left|:right):surface = paved
Sidewalk, smoothness	sidewalk(:left|:right):smoothness = good
Sidewalk, incline	sidewalk(:left|:right):incline = *	(%)
Sidewalk, curb	sidewalk(:left|:right):sloped_curb(:start|:end) = *	(m)
Steps	step_count = *
Ramp	highway = steps; ramp = yes; ramp:wheelchair = yes; ramp:stroller = yes

Figure 1. The proposed system architecture for data completeness checking.

Table 2. Results of number of sidewalk objects and attributes in OSM for four pilot cities (Query date: October 2014).

Sidewalk object	City, Country
	London, UK	Heidelberg, DE	Vienna, AU	Elche, ES
Sidewalk	14972	753	445	0
Sidewalk width	75	8	136	1
Sidewalk surface	5723	113	1355	14
Sidewalk smoothness	5	126	15	0
Sidewalk incline	62	6	12	1
Sidewalk curb	0	0	0	0
Step count	34	0	5	0
Ramp	40	0	3	0
Total number of residential ways	60231	1501	10227	2461

Figure 2. Mapping along the national trails.

Figure 3. Screenshot of a map illustrating sample data collected during the event.

Figure 4. Illustration of the RIU Campaign on Facebook.

Figure 5. Illustration of statistics collected during the RIU Campaign.

Figure 6. Illustrations of portable ramp mapped on Wheelmap.

Figure 7. Map of the area where the mapping event took place, and the edited objects (in blue).

Table 3. Results of number of sidewalk objects and attributes in OSM for four pilot cities (Query date: January 2017).

Sidewalk object	City, Country
	London, UK	Heidelberg, DE	Vienna, AU	Elche, ES
Sidewalk	20421	1008	1292	122
Sidewalk width	145	131	233	29
Sidewalk surface	5791	651	1461	24
Sidewalk smoothness	39	71	43	0
Sidewalk incline	91	73	33	19
Sidewalk kerb	0	0	117	0
Step count	34	12	5	0
Ramp	40	0	3	0
Total number of residential ways	64021	1527	11629	2714

Figure 8. Sidewalk data completeness assessment in London, UK (start and end of CAP4Access project).

Figure 9. Sidewalk data completeness assessment in Heidelberg, Germany (start and end of CAP4Access project).

Neis, P., and D. Zielstra. 2014. “Generation of a Tailored Routing Network for Disabled People Based on Collaboratively Collected Geodata.” Applied Geography 47: 70–77. doi:10.1016/j.apgeog.2013.12.004.

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