Geo-Analytics on OpenStreetMap Road Data January 26th, 2011

OpenStreetMap data is gaining increased attention and adoption within location-enabled applications. In contrast to commercial maps there is no defined long-term coverage expansion plan. Expansion is driven by the contributors and happens on a rather unpredictable basis on a global scale. Thus, one of the biggest questions for broad adoption in particular for commercial applications is: How does OSM compare to commercial maps for mileage covered and how is it going to evolve in the next couple of years assuming no major change in the trends?

A simple way of getting an idea of the coverage expansion trends is to look at the historical data. This article aims to provide visualizations for two elements: where was the coverage expansion happening and how did it break down on a weekly basis.

Beyonav has performed a statistical analysis on over 600GB compressed (10 TB uncompressed) weekly Planet-OSM database dump files since December 30th, 2009. Only map data which represent roads (ways tagged with the keyword “highway”) and have valid geometry (at least two nodes associated with the way) were processed. The animated picture below shows the weekly snapshots of the roads locations as a simple world heat map. The green points overlaid on the background represent locations with road coverage.

OSM

Version File size (Bytes) File size (%) Nodes Nodes (%) Road Ways Ways (%) Length (km) Length (mi) Length (%) Weekly diff (km)
12/30/2009 8,216,437,866 0.0% 520,355,702 0.0% 27,481,053 0.0% 20,184,494 12,542,063 0.0% 0
01/06/2010 8,242,646,586 0.3% 524,331,852 0.8% 27,628,461 0.5% 20,240,503 12,576,865 0.3% 56,009
01/13/2010 8,303,042,150 1.1% 530,023,428 1.9% 27,743,074 1.0% 20,298,175 12,612,701 0.6% 57,672
01/20/2010 8,360,042,709 1.7% 533,415,623 2.5% 27,858,701 1.4% 20,349,260 12,644,444 0.8% 51,085
01/29/2010 8,344,816,185 1.6% 537,760,243 3.3% 28,012,246 1.9% 20,430,089 12,694,669 1.2% 80,829
02/03/2010 8,404,336,612 2.3% 541,873,309 4.1% 28,096,426 2.2% 20,473,312 12,721,526 1.4% 43,223
02/10/2010 8,496,001,402 3.4% 548,107,464 5.3% 28,210,414 2.7% 20,527,015 12,754,896 1.7% 53,703
02/17/2010 8,591,230,912 4.6% 554,574,174 6.6% 28,365,139 3.2% 20,593,765 12,796,372 2.0% 66,750
02/24/2010 8,699,982,466 5.9% 561,881,993 8.0% 28,475,114 3.6% 20,650,722 12,831,764 2.3% 56,957
03/03/2010 8,777,869,017 6.8% 566,324,006 8.8% 28,578,075 4.0% 20,713,864 12,870,998 2.6% 63,142
03/10/2010 8,679,478,663 5.6%                
03/17/2010 8,725,842,154 6.2% 571,040,732 9.7% 28,784,438 4.7% 20,815,336 12,934,050 3.1% 101,472
03/24/2010 8,794,264,828 7.0% 574,797,076 10.5% 28,924,444 5.3% 20,879,668 12,974,024 3.4% 64,332
04/01/2010 8,866,296,117 7.9% 579,087,517 11.3% 29,032,709 5.6% 20,943,114 13,013,448 3.8% 63,446
04/07/2010 8,960,454,826 9.1% 585,299,498 12.5% 29,147,400 6.1% 20,995,303 13,045,876 4.0% 52,189
04/14/2010 9,075,866,173 10.5% 593,072,533 14.0% 29,288,791 6.6% 21,057,859 13,084,747 4.3% 62,556
04/21/2010 9,164,287,612 11.5% 598,786,123 15.1% 29,430,513 7.1% 21,119,218 13,122,874 4.6% 61,359
04/28/2010 9,257,145,692 12.7% 604,455,269 16.2% 29,556,543 7.6% 21,181,255 13,161,422 4.9% 62,037
05/05/2010 9,485,424,113 15.4% 615,696,720 18.3% 29,691,249 8.0% 21,243,327 13,199,992 5.2% 62,072
05/12/2010 9,596,768,067 16.8% 622,887,207 19.7% 29,820,574 8.5% 21,304,692 13,238,121 5.5% 61,365
05/19/2010 9,716,584,080 18.3% 630,431,649 21.2% 29,957,866 9.0% 21,359,386 13,272,107 5.8% 54,694
05/26/2010 9,844,355,581 19.8% 638,741,651 22.8% 30,079,545 9.5% 21,420,541 13,310,107 6.1% 61,155
06/02/2010 10,026,036,818 22.0% 650,822,903 25.1% 30,196,302 9.9% 21,477,353 13,345,408 6.4% 56,812
06/09/2010 10,104,193,357 23.0% 655,570,275 26.0% 30,330,547 10.4% 21,539,162 13,383,814 6.7% 61,809
06/18/2010 10,211,036,403 24.3% 662,265,076 27.3% 30,462,335 10.8% 21,593,103 13,417,332 7.0% 53,941
06/23/2010 10,314,471,731 25.5% 669,185,992 28.6% 30,549,167 11.2% 21,631,886 13,441,431 7.2% 38,783
06/30/2010 10,487,907,176 27.6% 680,542,326 30.8% 30,666,257 11.6% 21,680,226 13,471,468 7.4% 48,340
07/07/2010 10,774,738,684 31.1% 686,936,783 32.0% 30,767,510 12.0% 21,724,378 13,498,902 7.6% 44,152
07/16/2010 10,970,290,860 33.5% 699,555,762 34.4% 30,947,177 12.6% 21,806,770 13,550,099 8.0% 82,392
07/21/2010 11,051,206,933 34.5% 704,211,816 35.3% 31,038,063 12.9% 21,849,691 13,576,768 8.2% 42,921
07/28/2010 11,158,593,106 35.8% 710,501,842 36.5% 31,164,123 13.4% 21,914,132 13,616,810 8.6% 64,441
08/04/2010 11,291,094,869 37.4% 718,830,583 38.1% 31,299,618 13.9% 21,981,748 13,658,825 8.9% 67,616
08/11/2010 11,404,239,476 38.8% 725,988,752 39.5% 31,434,242 14.4% 22,046,837 13,699,269 9.2% 65,089
08/18/2010 11,554,930,232 40.6% 735,321,630 41.3% 31,571,694 14.9% 22,119,211 13,744,240 9.6% 72,374
08/25/2010 11,729,341,799 42.8% 746,179,013 43.4% 31,708,967 15.4% 22,190,220 13,788,363 9.9% 71,009
09/01/2010 11,903,755,710 44.9% 756,922,313 45.5% 31,852,685 15.9% 22,263,267 13,833,753 10.3% 73,047
09/08/2010 12,043,422,742 46.6% 765,419,137 47.1% 31,993,903 16.4% 22,327,697 13,873,788 10.6% 64,430
09/15/2010 12,194,055,154 48.4% 774,548,304 48.8% 32,127,125 16.9% 22,403,375 13,920,812 11.0% 75,678
09/22/2010 12,302,951,919 49.7% 781,059,038 50.1% 32,254,748 17.4% 22,474,960 13,965,293 11.3% 71,585
09/29/2010 12,416,912,795 51.1% 788,037,002 51.4% 32,398,982 17.9% 22,559,371 14,017,743 11.8% 84,411
10/06/2010 12,540,744,335 52.6% 795,620,573 52.9% 32,519,407 18.3% 22,676,294 14,090,396 12.3% 116,923
10/13/2010 12,644,460,358 53.9% 801,562,971 54.0% 32,638,228 18.8% 22,729,507 14,123,461 12.6% 53,213
10/20/2010 12,797,735,867 55.8% 810,860,282 55.8% 32,751,796 19.2% 22,783,840 14,157,222 12.9% 54,333
10/27/2010 12,908,266,910 57.1% 817,455,277 57.1% 32,876,506 19.6% 22,838,235 14,191,021 13.1% 54,395
11/03/2010 13,040,185,862 58.7% 825,539,318 58.6% 32,996,683 20.1% 22,901,132 14,230,104 13.5% 62,897
11/10/2010 13,151,567,675 60.1% 832,188,114 59.9% 33,116,380 20.5% 22,961,385 14,267,543 13.8% 60,253
11/17/2010 13,263,825,430 61.4% 839,194,975 61.3% 33,252,561 21.0% 23,019,483 14,303,643 14.0% 58,098
11/24/2010 13,381,265,051 62.9% 846,519,930 62.7% 33,349,205 21.4% 23,056,711 14,326,776 14.2% 37,228
12/01/2010 13,562,793,117 65.1% 857,723,471 64.8% 33,466,847 21.8% 23,107,147 14,358,115 14.5% 50,436
12/08/2010 13,753,111,608 67.4% 868,526,595 66.9% 33,683,505 22.6% 23,203,217 14,417,810 15.0% 96,070
12/15/2010 13,916,167,364 69.4% 878,201,891 68.8% 33,896,782 23.3% 23,287,526 14,470,198 15.4% 84,309
12/22/2010 14,152,557,604 72.2% 893,111,088 71.6% 34,103,470 24.1% 23,375,911 14,525,117 15.8% 88,385
12/29/2010 14,359,437,887 74.8% 905,697,052 74.1% 34,294,564 24.8% 23,452,092 14,572,454 16.2% 76,181
01/05/2011 14,537,015,688 76.9% 916,349,756 76.1% 34,494,493 25.5% 23,541,399 14,627,947 16.6% 89,307
01/12/2011 14,752,535,791 79.5% 929,443,970 78.6% 34,745,758 26.4% 23,654,260 14,698,075 17.2% 112,861
01/19/2011 14,903,367,850 81.4% 938,392,397 80.3% 34,962,074 27.2% 23,747,682 14,756,125 17.7% 93,422
Total 614,207,391,972

Now, what can be read out of those pictures, numbers and charts? Here is Beyonav’s take on it:

  • New data was added all over the world, growing coverage is particularly visible in emerging regions of the planet
  • The growth is surprisingly constant, that means a lot of dedicated mappers were actively working on the data
  • Large problems were fixed reasonably quickly
  • The total number of road mileage covered worldwide is very impressive with 24 million kilometers, and it reflects only about half of the total amount of data of the database, thus cartographic objects and POI counts are high as well
  • Due to high frequency updates problems in the process were fixed and things moved on, there was no “going back and fix history” as seen with the corrupt file from March 10.
  • The amount of data in the OSM database is reaching a level which makes it hard to process without expensive server infrastructure. This may be a reason why more commercial support around OSM maps surfaces.
  • The server infrastructure seems to be very stable and well maintained, except for one corrupt file in one year, all weekly dumps were valid and published on time (reading the time stamps).

Leaving geographical quality, accuracy and consistency considerations aside for a moment and just looking at the coverage expansion trends and support around the live OSM map database, OSM seems to be ready for broad adoption in traditional navigation and LBS applications.

Beyonav is following this trend and will support the adoption with commercial support for OSM data in addition to commercial maps in the area of detailed statistics generation and analysis, map pre-processing and optimization for navigation, and LBS usage and publishing in industry standard formats as well as binary runtime formats.

Planet OSM  

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7 Responses

  1. Eric Frost says:

    Fascinating, the coverage almost doubled in one year.

    Can commercial products like Bing Maps (online maps) or MapInfo Pro (desktop software) integrate and use this in their offerings without restriction?

    Also, how “routable” is the data e.g. I know TIGER data used to be crap for routing because all the nodes/etc. weren’t connected and lacking routing attributes.

    Finally, I actually did a road data comparison between MapPoint 2010 and MapPoint 2011 recently http://www.mapforums.com/mappoint-2010-mappoint-2011-road-comparisons-15554.html I think both using NAVTEQ data, I should grab the OSM data for the same areas to see how it stacks up!

  2. Josias says:

    Hi, for Legal-Questions see here: http://wiki.openstreetmap.org/wiki/Legal_FAQ

    OpenStreetMap is at most highly routable. There are many online, offline and mobile Routingsystems. Here is an Overview: http://wiki.openstreetmap.org/wiki/Routers

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