Completed MapRoulette Challenges

This is a list of MapRoulette Challenges that we posted that have been finished, accurate as of February 2020. More have been finished since then.

Completed and old challenges

• Albania Malformed roundabouts: https://maproulette.org/browse/challenges/8631
• Algeria Sharp Road Angles: https://maproulette.org/challenge/4095
• Albania Floating or disconnected roads: https://maproulette.org/browse/challenges/8625
• Albania Impossible routing: https://maproulette.org/browse/challenges/8630
• Albania Sharp road angles: https://maproulette.org/browse/challenges/8627
• Albania crossing roads: https://maproulette.org/browse/challenges/8633
• Albania Road connectivity: https://maproulette.org/browse/challenges/8635
• Albania Malformed Roundabouts: https://maproulette.org/challenge/9472
• Algeria Crossing Ways: https://maproulette.org/challenge/4094
• Angola Connectivity Check: https://maproulette.org/challenge/4115
• Angola Routing problems: https://maproulette.org/browse/challenges/8399
• Angola Impossible Routing and Sink Islands: https://maproulette.org/challenge/4116
• Angola Floating Ways: https://maproulette.org/challenge/4118
• Angola Invalid turn restriction: https://maproulette.org/browse/challenges/8397
• Angola Floating and disconnected roads: https://maproulette.org/browse/challenges/8398
• Angola Malformed roundabouts: https://maproulette.org/browse/challenges/8401
• Angola Road connectivity check: https://maproulette.org/browse/challenges/8402
• Angola Sharp Road Angles: https://maproulette.org/challenge/4117
• Angola Crossing Ways: https://maproulette.org/challenge/4119
• Angola Crossing Ways: https://maproulette.org/browse/challenges/12088
• Anguilla Connectivity Check: https://maproulette.org/challenge/9211
• Antigua & Barbuda Building-Road Intersections: https://maproulette.org/challenge/3999
• Antigua & Barbuda Sink Islands and Impossible Routing: https://maproulette.org/challenge/3998
• Argentina road link check: https://maproulette.org/mr3/browse/challenges/3393/
• Argentina sharp road angles: https://maproulette.org/mr3/browse/challenges/3392/
• Argentina building-road intersections: https://maproulette.org/mr3/browse/challenges/3394/
• Aruba Sink Islands and Impossible Routing: https://maproulette.org/challenge/4015
• Aruba Sharp Road Angles: https://maproulette.org/challenge/9207
• Aruba Invalid Turn Restrictions: https://maproulette.org/challenge/9206
• Bahamas Sink Islands and Impossible Routing: https://maproulette.org/challenge/4016
• Bahamas Crossing Roads: https://maproulette.org/challenge/9225
• Bahamas Floating Ways/Disconnected Roads: https://maproulette.org/challenge/9223
• Bahamas Invalid Turn Restrictions: https://maproulette.org/challenge/9227
• Bahamas Malformed Roundabouts: https://maproulette.org/challenge/9224
• Belarus sharp angles: https://maproulette.org/mr3/challenge/3619
• Belarus building-road intersections: https://maproulette.org/mr3/challenge/3613/
• Belarus overlapping ways: https://maproulette.org/mr3/challenge/3614/
• Belize Sink Islands and Impossible Routing: https://maproulette.org/challenge/4017
• Bermuda Impossible Routing and Sink Islands: https://maproulette.org/challenge/4080
• Bolivia road links: https://maproulette.org/mr3/challenge/3675
• Bolivia overlapping ways: https://maproulette.org/mr3/challenge/3676
• Bolivia sharp road angles: https://maproulette.org/mr3/challenge/3677
• Bolivia building-road intersections: https://maproulette.org/mr3/challenge/3674
• Bosnia and Herzegovina Road connectivity check: https://maproulette.org/browse/challenges/8662
• Bosnia and Herzegovina Invalid turn restrictions: https://maproulette.org/browse/challenges/8673
• Bosnia and Herzegovina Invalid lane numbers: https://maproulette.org/browse/challenges/8674
• Bosnia and Herzegovina Highway links: https://maproulette.org/browse/challenges/8667
• Bosnia and Herzegovina Malformed roundabouts: https://maproulette.org/browse/challenges/8670
• Bosnia and Herzegovina Crossing roads: https://maproulette.org/browse/challenges/8663
• Bosnia and Herzegovina Impossible routing: https://maproulette.org/browse/challenges/8664
• Bosnia and Herzegovina Floating and disconnected roads: https://maproulette.org/browse/challenges/8666
• Bosnia and Herzegovina Road Link Check: https://maproulette.org/challenge/9478
• Brazil Sharp Angles: https://maproulette.org/mr3/challenge/3666
• Brazil road links: https://maproulette.org/mr3/challenge/3667
• Brazil sharp road angles 2: https://maproulette.org/challenge/3948
• Brazil Sharp road angles: https://maproulette.org/browse/challenges/8652
• Brazil Road link check: https://maproulette.org/browse/challenges/8654
• Brazil Malformed roundabouts: https://maproulette.org/browse/challenges/8650
• Brazil Connectivity check: https://maproulette.org/browse/challenges/8657
• Brazil overlapping ways: https://maproulette.org/mr3/challenge/3668
• Brazil building-road intersection: https://maproulette.org/mr3/challenge/3669
• Brazil Impossible routing areas: https://maproulette.org/browse/challenges/8655
• Brazil Sink Islands & Impossible Routing: https://maproulette.org/challenge/9501
• Brazil unmapped cities: https://maproulette.org/challenge/3867
• Brazil Crossing roads: https://maproulette.org/browse/challenges/8659
• Brazil Disconnected or floating roads: https://maproulette.org/browse/challenges/8649
• Brazil Road Connectivity Problems: https://maproulette.org/browse/challenges/8657
• Brazil Overlapping Lines: https://maproulette.org/challenge/9499
• Brazil Invalid Turn Restrictions: https://maproulette.org/challenge/9506
• British Virgin Islands: Impossible Routing and Sink Islands: https://maproulette.org/challenge/4087
• Burundi Sharp Angle Roads: https://maproulette.org/challenge/9086
• Bulgaria Sink Islands & Impossible Routing: https://maproulette.org/challenge/9095
• Bulgaria Crossing Roads: https://maproulette.org/challenge/10294
• Bulgaria Connectivity Check: https://maproulette.org/challenge/10286
• Bulgaria Floating Ways & Disconnected Roads: https://maproulette.org/challenge/10290
• Bulgaria Invalid Turn Restrictions: https://maproulette.org/challenge/10304
• Bulgaria Malformed Roundabouts: https://maproulette.org/challenge/10284
• Bulgaria Overlapping Lines: https://maproulette.org/challenge/10287
• Bulgaria Sharp Angle Roads: https://maproulette.org/challenge/9091
• Bulgaria Road Link Check: https://maproulette.org/challenge/10303
• Chile Building-Road Intersections: https://maproulette.org/challenge/9521
• Chile sharp road angles: https://maproulette.org/mr3/challenge/3573/
• Chile Coastline Check: https://maproulette.org/challenge/8259
• Chile road links: https://maproulette.org/mr3/challenge/3574
• Chile building-road intersections: https://maproulette.org/mr3/challenge/3459
• Colombia road link check: https://maproulette.org/mr3/browse/challenges/3355
• Colombia sharp road angles: https://maproulette.org/mr3/browse/challenges/3358
• Colombia overlapping ways: https://maproulette.org/mr3/challenge/3506/
• Colombia building-road intersections: https://maproulette.org/mr3/browse/challenges/3389
• Colombia Coastline Check: https://maproulette.org/challenge/8251
• Colombia Crossing Roads: https://maproulette.org/challenge/9526
• Costa Rica overlapping ways: https://maproulette.org/mr3/challenge/3580
• Costa Rica sharp road angles: https://maproulette.org/mr3/challenge/3579
• Cuba Sink Islands and Impossible Routing https://maproulette.org/challenge/4018
• Cyprus Crossing Ways: https://maproulette.org/challenge/4134
• Cyprus Impossible Routing and Sink Islands: https://maproulette.org/challenge/4133
• Cyprus Connectivity Check: https://maproulette.org/challenge/4145
• Cyprus Connectivity Check: https://maproulette.org/challenge/9248
• Denmark building-road intersections: https://maproulette.org/mr3/browse/challenges/3425/
• Denmark road link check: https://maproulette.org/mr3/browse/challenges/3426/
• Denmark sharp road angles: https://maproulette.org/mr3/browse/challenges/3427/
• Denmark Connectivity Check: https://maproulette.org/challenge/4089
• Denmark Floating Edge Check: https://maproulette.org/challenge/4090
• Denmark Crossing Ways: https://maproulette.org/challenge/4091
• Denmark Impossible Routing and Sink Islands: https://maproulette.org/challenge/4088
• Denmark Connectivity Check: https://maproulette.org/challenge/9540
• Ecuador overlapping ways: https://maproulette.org/mr3/challenge/3559
• Ecuador sharp road angles: https://maproulette.org/mr3/challenge/3576
• Ecuador road links: https://maproulette.org/mr3/challenge/3558/
• Ecuador Sink Islands & Impossible Routing: https://maproulette.org/challenge/9545
• Ecuador building-road intersections: https://maproulette.org/mr3/challenge/3575
• Ecuador Floating Ways & Disconnected Roads: https://maproulette.org/challenge/9546
• Egypt Sharp road angles: https://maproulette.org/browse/challenges/8688
• El Salvador road links: https://maproulette.org/mr3/browse/challenges/3797
• El Salvador overlapping ways: https://maproulette.org/mr3/browse/challenges/3798
• El Salvador sharp road angles: https://maproulette.org/mr3/browse/challenges/3796
• El Salvador building-road intersections: https://maproulette.org/mr3/browse/challenges/3795
• Finland Crossing Roads: https://maproulette.org/browse/challenges/8639
• Finland Floating Ways / Disconnected Roads: https://maproulette.org/browse/challenges/8641
• Finland Malformed Roundabout Check: https://maproulette.org/browse/challenges/8645
• Finland Sharp Angle Roads: https://maproulette.org/browse/challenges/8646
• Georgia Sharp Angle Roads: https://maproulette.org/challenge/3981
• Greece Connectivity Check: https://maproulette.org/challenge/4068
• Greece Impossible Routing: https://maproulette.org/challenge/4067
• Greece Crossing Ways: https://maproulette.org/challenge/4191
• Greece Floating and Disconnected Roads: https://maproulette.org/challenge/4192
• Greece Connectivity Check: https://maproulette.org/challenge/9583
• Greece Crossing Roads: https://maproulette.org/challenge/9585
• Greece Building-Road Intersections: https://maproulette.org/challenge/9582
• Greece Invalid Turn Restrictions: https://maproulette.org/challenge/9580
• Greece Sharp Road Angles: https://maproulette.org/challenge/4190
• Greece Malformed Roundabouts: https://maproulette.org/challenge/9584
• Greece Connectivity Check Update: https://maproulette.org/challenge/8927
• Greece Invalid Lanes Tag Check: https://maproulette.org/challenge/8926
• Greece Malformed Roundabout Check: https://maproulette.org/challenge/8924
• Greece Malformed Roundabouts: https://maproulette.org/challenge/9584
• Greece Overlapping Lines: https://maproulette.org/challenge/9588
• Greece Road Link Check: https://maproulette.org/challenge/8918
• Greece Sharp Angle Roads Update: https://maproulette.org/challenge/8919
• Greece Sink Islands & Impossible Routing: https://maproulette.org/challenge/8928
• Grenada Impossible Routing and Sink Islands: https://maproulette.org/challenge/4079
• Guadeloupe Sink Islands and Impossible Routing: https://maproulette.org/challenge/4019
• Guadeloupe Sink Islands & Impossible Routing: https://maproulette.org/challenge/9266
• Haiti Sink Islands and Impossible Routing: https://maproulette.org/challenge/4020
• Haiti Sharp Angle Roads: https://maproulette.org/challenge/4023
• Hong Kong sharp road angles: https://maproulette.org/challenge/3908
• Hong Kong crossing ways: https://maproulette.org/challenge/3906
• Hong Kong road connectivity check: https://maproulette.org/challenge/3905
• Hong Kong sink islands/impossible navigation: https://maproulette.org/challenge/3903
• Hong Kong incorrect roundabouts: https://maproulette.org/challenge/3907
• Hong Kong Invalid lanes: https://maproulette.org/browse/challenges/9273
• Hong Kong Invalid turn restriction: https://maproulette.org/browse/challenges/9271
• Iceland Impossible Routing: https://maproulette.org/challenge/4072
• Iceland Connectivity Check: https://maproulette.org/challenge/4068
• Iceland sharp angle roads: https://maproulette.org/challenge/4074
• Iceland overlapping ways: https://maproulette.org/challenge/4075
• Indonesia Sharp Angle Roads: https://maproulette.org/challenge/7977
• Indonesia Floating and disconnected roads: https://maproulette.org/browse/challenges/8700
• Indonesia Connectivity check: https://maproulette.org/browse/challenges/8697
• Indonesia Invalid lanes: https://maproulette.org/browse/challenges/8702
• Indonesia Malformed roundabouts: https://maproulette.org/browse/challenges/8704
• Indonesia Floating Roads: https://maproulette.org/challenge/7978
• Indonesia Crossing Roads: https://maproulette.org/challenge/7979
• Indonesia Sink Islands and Impossible Routing: https://maproulette.org/challenge/7980
• Iran Sharp Road Angles: https://maproulette.org/challenge/4055/
• Iran Floating Ways: https://maproulette.org/challenge/4057
• Iran Crossing Ways: https://maproulette.org/challenge/4058
• Iran Sharp Angle Roads: https://maproulette.org/challenge/9619
• Jamaica Sharp Angle Roads: https://maproulette.org/challenge/4024
• Jamaica Sink Islands and Impossible Routing: https://maproulette.org/challenge/4021
• Jamaica Sharp Angle Roads Sep Update: https://maproulette.org/challenge/9295
• Kenya Road Link Check: https://maproulette.org/challenge/9642
• Kenya impossible routing: https://maproulette.org/browse/challenges/8734
• Kenya crossing roads: https://maproulette.org/browse/challenges/8740
• Kenya sharp road angles: https://maproulette.org/browse/challenges/8737
• Kenya connectivity check: https://maproulette.org/browse/challenges/8741
• Kenya invalid turn restrictions: https://maproulette.org/browse/challenges/8742
• Kenya Overlapping Lines: https://maproulette.org/challenge/9639
• Kosovo sharp road angles: https://maproulette.org/browse/challenges/8935
• Lebanon Crossing Roads: https://maproulette.org/challenge/9652
• Macau Roads Connectivity Check: https://maproulette.org/challenge/3992
• Macau Building Road Intersections: https://maproulette.org/challenge/3995
• Macau Incorrect Roundabout: https://maproulette.org/challenge/3994
• Macau Sink Islands and Impossible Routing: https://maproulette.org/challenge/3993
• Madagascar Sharp Angle Roads: https://maproulette.org/challenge/8058
• Madagascar Crossing Roads: https://maproulette.org/challenge/8060
• Malaysia Floating Roads: https://maproulette.org/challenge/4220
• Malaysia Sharp Angle Roads: https://maproulette.org/challenge/4219
• Malaysia Crossing Roads: https://maproulette.org/challenge/4221
• Malaysia Sink Islands and Impossible Routing: https://maproulette.org/challenge/4218
• Malaysia Connectivity Check: https://maproulette.org/challenge/8555
• Malaysia Crossing Roads: https://maproulette.org/challenge/8558
• Malaysia Invalid Lanes Tag Check: https://maproulette.org/challenge/8561
• Malaysia Malformed Roundabout Check: https://maproulette.org/challenge/8556
• Malaysia Road Link Check: https://maproulette.org/challenge/8554
• Malaysia Sharp Angle Roads Update: https://maproulette.org/challenge/8557
• Martinique Floating Ways & Disconnected Roads: https://maproulette.org/challenge/9315
• Martinique Connectivity Check: https://maproulette.org/challenge/9312
• Mexico Connectivity Check: https://maproulette.org/challenge/9677
• Mexico Crossing Roads: https://maproulette.org/challenge/9678
• Mexico Floating Ways & Disconnected Roads: https://maproulette.org/challenge/9684
• Mexico Invalid Turn Restrictions: https://maproulette.org/challenge/9686
• Mexico Malformed Roundabouts: https://maproulette.org/challenge/9683
• Mexico Overlapping Lines: https://maproulette.org/challenge/9679
• Mexico Road Link Check: https://maproulette.org/challenge/9685
• Mexico Sharp Angle Roads: https://maproulette.org/challenge/9682
• Mexico Sink Islands & Impossible Routing: https://maproulette.org/challenge/9676
• Mexico overlapping ways: https://maproulette.org/mr3/browse/challenges/3631
• Mexico building-road intersections: https://maproulette.org/mr3/browse/challenges/3633
• Mexico Crossing roads: https://maproulette.org/browse/challenges/8565
• Mexico Impossible routing: https://maproulette.org/browse/challenges/8568
• Mexico Sharp angles: https://maproulette.org/browse/challenges/8570
• Mexico Road connectivity check: https://maproulette.org/browse/challenges/8566
• Mexico Floating and disconnected roads: https://maproulette.org/browse/challenges/8567
• Mexico Invalid turn restrictions: https://maproulette.org/browse/challenges/8576
• Mexico Malformed roundabouts: https://maproulette.org/browse/challenges/8572
• Mexico Road link check: https://maproulette.org/browse/challenges/8573
• Mexico Invalid lanes: https://maproulette.org/browse/challenges/8575
• Mexico road links: https://maproulette.org/mr3/browse/challenges/3632
• Mexico sharp road angles: https://maproulette.org/mr3/browse/challenges/3630
• Moldova Building-road intersection: https://maproulette.org/challenge/3806
• Moldova Overlapping Ways: https://maproulette.org/challenge/3807
• Moldova Sharp Angles: https://maproulette.org/challenge/3808
• Moldova Connectivity Check: https://maproulette.org/challenge/4053
• Moldova Crossing Ways: https://maproulette.org/challenge/4052
• Moldova Floating Way Check: https://maproulette.org/challenge/4054/
• Moldova Sink Islands and Impossible Routing: https://maproulette.org/challenge/4051
• Morocco Connectivity Check: https://maproulette.org/challenge/8780
• Morocco Crossing Roads: https://maproulette.org/challenge/8779
• Morocco Floating Ways / Disconnected Roads: https://maproulette.org/challenge/8777
• Morocco Invalid Turn Restrictions: https://maproulette.org/challenge/9670
• Morocco Malformed Roundabout Check: https://maproulette.org/challenge/8775
• Morocco Malformed Roundabouts: https://maproulette.org/challenge/9669
• Morocco Overlapping Lines: https://maproulette.org/challenge/9675
• Morocco Road Link Check: https://maproulette.org/challenge/8773
• Morocco Sharp Angle Roads: https://maproulette.org/challenge/8770
• Morocco Sink Islands & Impossible Routing: https://maproulette.org/challenge/8774
• Nicaragua sharp road angles: https://maproulette.org/mr3/challenge/3762
• Nicaragua overlapping ways: https://maproulette.org/mr3/challenge/3761
• Nigeria Sharp Angle Roads: https://maproulette.org/challenge/9318
• Nigeria Crossing Roads: https://maproulette.org/challenge/9321
• Nigeria Floating Ways & Disconnected Roads: https://maproulette.org/challenge/9317
• North Macedonia impossible routing: https://maproulette.org/browse/challenges/8765
• North Macedonia sharp road angles: https://maproulette.org/browse/challenges/8762
• North Macedonia crossing roads: https://maproulette.org/browse/challenges/8768
• North Macedonia connectivity check: https://maproulette.org/browse/challenges/8769
• North Macedonia invalid turn restrictions: https://maproulette.org/browse/challenges/8764
• Panama sharp road angles: https://maproulette.org/mr3/challenge/3673
• Panama overlapping ways: https://maproulette.org/mr3/challenge/3672
• Panama building-road intersections: https://maproulette.org/mr3/challenge/3670
• Panama road links: https://maproulette.org/mr3/challenge/3671
• Peru road links: https://maproulette.org/mr3/challenge/3555/
• Peru sharp road angles: https://maproulette.org/mr3/challenge/3553
• Peru Connectivity Check: https://maproulette.org/challenge/9723
• Peru Floating Ways & Disconnected Roads: https://maproulette.org/challenge/9718
• Peru Invalid Turn Restrictions: https://maproulette.org/challenge/9727
• Peru Malformed Roundabouts: https://maproulette.org/challenge/9728
• Peru Overlapping Lines: https://maproulette.org/challenge/9721
• Peru Road Link Check: https://maproulette.org/challenge/9726
• Philippines Malformed roundabouts: https://maproulette.org/browse/challenges/8809
• Philippines Invalid turn restriction: https://maproulette.org/browse/challenges/8815
• Philippines Connectivity Check: https://maproulette.org/challenge/8806
• Philippines Crossing Roads: https://maproulette.org/challenge/8807
• Philippines Floating Ways / Disconnected Roads: https://maproulette.org/challenge/8810
• Philippines Invalid Lanes Tag Check: https://maproulette.org/challenge/8814
• Philippines Road Link Check: https://maproulette.org/challenge/8813
• Philippines Sharp Angle Roads: https://maproulette.org/challenge/8808
• Philippines Sink Islands & Impossible Routing: https://maproulette.org/challenge/8804
• Reunion Malformed Roundabouts: https://maproulette.org/challenge/9742
• Romania Crossing roads: https://maproulette.org/browse/challenges/8831
• Romania Floating and disconnected roads: https://maproulette.org/browse/challenges/8840
• Romania Sharp angles: https://maproulette.org/browse/challenges/8834
• Romania Road connectivity check: https://maproulette.org/browse/challenges/8832
• Romania Road connectivity check: https://maproulette.org/browse/challenges/10821
• Romania Road links: https://maproulette.org/browse/challenges/8835
• Romania Routing problems: https://maproulette.org/browse/challenges/8829
• Romania Invalid turn restriction: https://maproulette.org/browse/challenges/8838
• Romania Malformed roundabouts: https://maproulette.org/browse/challenges/8837
• Romania Invalid lanes: https://maproulette.org/browse/challenges/8836
• Romania Invalid Turn Restrictions: https://maproulette.org/challenge/9757
• Romania Malformed Roundabouts: https://maproulette.org/challenge/9756
• Romania Overlapping Lines: https://maproulette.org/challenge/9751
• Romania (ROU) - Floating and Disconnected Road Check: https://maproulette.org/challenge/10828
• Russia Floating Ways & Disconnected Roads: https://maproulette.org/challenge/9342
• Russia Crossing Roads: https://maproulette.org/challenge/9346
• Russia Invalid Lanes Tag: https://maproulette.org/challenge/9347
• Russia Sharp Angle Roads: https://maproulette.org/challenge/9345
• Rwanda Sharp Angle Roads: https://maproulette.org/challenge/8846
• Saint Lucia Connectivity Check: https://maproulette.org/challenge/9307
• Serbia Floating and Disconnected Roads - Sept 2019: https://maproulette.org/challenge/9119
• Serbia Impossible Routing and Sink Islands - Sept 2019: https://maproulette.org/challenge/9122
• Serbia Overlapping Ways - Sept 2019: https://maproulette.org/challenge/9120
• Serbia Sharp Angle Roads - Sept 2019: https://maproulette.org/challenge/9121
• Serbia Invalid Turn Restrictions: https://maproulette.org/challenge/9775
• Serbia Overlapping Lines: https://maproulette.org/challenge/9783
• Serbia Connectivity Check: https://maproulette.org/challenge/8945
• Serbia Crossing Roads: https://maproulette.org/challenge/8944
• Serbia Floating Ways / Disconnected Roads: https://maproulette.org/challenge/8943
• Serbia Sharp Angle Roads Update: https://maproulette.org/challenge/8947
• Serbia Sink Islands & Impossible Routing: https://maproulette.org/challenge/8942
• Singapore incorrect roundabouts: https://maproulette.org/challenge/3915
• Singapore crossing ways: https://maproulette.org/challenge/3913
• Singapore sink islands: https://maproulette.org/challenge/3912
• Singapore connectivity check: https://maproulette.org/challenge/3911
• Singapore Connectivity Check: https://maproulette.org/challenge/8596
• Singapore Crossing Roads: https://maproulette.org/challenge/8597
• Singapore Invalid Turn Restriction Check: https://maproulette.org/challenge/8593
• South Africa Sharp Road Angles: https://maproulette.org/challenge/4187
• South Africa Crossing Ways: https://maproulette.org/challenge/4189
• South Africa Floating and Disconnected Roads: https://maproulette.org/challenge/4188
• South Africa Crossing roads: https://maproulette.org/browse/challenges/8863
• South Africa Malformed Roundabouts: https://maproulette.org/challenge/9845
• South Africa Sharp Angle Roads: https://maproulette.org/challenge/8856
• South Korea sharp road angles: https://maproulette.org/mr3/challenge/3421
• South Korea road links: https://maproulette.org/mr3/challenge/3422
• South Korea building-road intersections: https://maproulette.org/mr3/challenge/3423
• Sri Lanka Connectivity Check: https://maproulette.org/challenge/9658
• Sri Lanka Crossing Roads: https://maproulette.org/challenge/9655
• Sri Lanka Floating Ways & Disconnected Roads: https://maproulette.org/challenge/9659
• Sri Lanka Invalid Turn Restrictions: https://maproulette.org/challenge/9663
• Sri Lanka Road Link Check: https://maproulette.org/challenge/9664
• Sri Lanka Sink Islands & Impossible Routing: https://maproulette.org/challenge/9654
• Sri Lanka building-road intersections: https://maproulette.org/mr3/challenge/3748
• Sri Lanka overlapping ways: https://maproulette.org/mr3/challenge/3748
• Sri Lanka sharp road angles: https://maproulette.org/mr3/challenge/3746
• Sri Lanka road links: https://maproulette.org/mr3/challenge/3747
• Taiwan Sharp Angle Roads: https://maproulette.org/challenge/4212
• Tanzania sharp road angles: https://maproulette.org/challenge/3805
• Tanzania Crossing Ways: https://maproulette.org/challenge/4113
• Tanzania overlapping ways: https://maproulette.org/challenge/3804
• Tanzania Impossible Routing and Sink Islands: https://maproulette.org/challenge/4112
• Tanzania Connectivity Check: https://maproulette.org/challenge/4114
• Thailand Crossing Roads: https://maproulette.org/challenge/8873
• Thailand Sharp Angle Roads: https://maproulette.org/challenge/9792
• Togo Sharp Angle Roads: https://maproulette.org/challenge/8051
• Togo Crossing Roads: https://maproulette.org/challenge/8049
• Trinidad and Tobago Sink Islands and Impossible Routing: https://maproulette.org/challenge/4022
• Tunisia Connectivity Check: https://maproulette.org/challenge/9802
• Tunisia Invalid lanes: https://maproulette.org/browse/challenges/8885
• Tunisia Sharp Angle Roads: https://maproulette.org/challenge/8882
• Uganda Floating and disconnected roads: https://maproulette.org/browse/challenges/8894
• Uganda Crossing roads: https://maproulette.org/browse/challenges/8890
• Uganda Invalid turn restriction: https://maproulette.org/browse/challenges/8901
• Uganda Malformed roundabouts: https://maproulette.org/browse/challenges/8899
• Uganda Connectivity Check: https://maproulette.org/challenge/9808
• Uganda Sink Islands & Impossible Routing: https://maproulette.org/challenge/9810
• Uganda Road Link Check: https://maproulette.org/challenge/8900
• Uganda Sharp Angle Roads: https://maproulette.org/challenge/8893
• Ukraine sharp road angles: https://maproulette.org/mr3/challenge/3531
• Ukraine road links: https://maproulette.org/mr3/challenge/3532
• Ukraine Connectivity Check: https://maproulette.org/challenge/3991
• Ukraine sharp road angles #2: https://maproulette.org/challenge/3987
• Ukraine building-road intersections: https://maproulette.org/mr3/challenge/3529
• Ukraine overlapping ways: https://maproulette.org/mr3/challenge/3530
• Ukraine Sink Islands: https://maproulette.org/challenge/3986
• Ukraine Incorrect or Mistagged Roundabout: https://maproulette.org/challenge/3989
• Ukraine Crossing Ways: https://maproulette.org/challenge/3990
• Ukraine Crossing Roads: https://maproulette.org/challenge/9820
• Ukraine Invalid Turn Restrictions: https://maproulette.org/challenge/9825
• Ukraine Malformed Roundabouts: https://maproulette.org/challenge/9824
• Ukraine Overlapping Lines: https://maproulette.org/challenge/9816
• Ukraine (UKR) - Crossing Road Check: https://maproulette.org/challenge/10778
• Ukraine Connectivity Check: https://maproulette.org/challenge/8612
• Ukraine Floating Ways / Disconnected Roads: https://maproulette.org/challenge/8617
• Ukraine Malformed Roundabout Check: https://maproulette.org/challenge/8622
• Ukraine Overlapping Ways: https://maproulette.org/challenge/3530
• Ukraine Road Link Check Update: https://maproulette.org/challenge/8618
• Ukraine Sink Islands & Impossible Routing: https://maproulette.org/challenge/8615
• Uruguay overlapping ways: https://maproulette.org/mr3/challenge/3744
• Uruguay sharp road angles: https://maproulette.org/mr3/challenge/3743
• Uruguay building-road intersections: https://maproulette.org/mr3/challenge/3745
• Uruguay Impossible Routing and Sink Islands: https://maproulette.org/challenge/4102
• Uruguay Floating Ways: https://maproulette.org/challenge/4103
• Uruguay Crossing Ways: https://maproulette.org/challenge/4104
• Uruguay Crossing Roads: https://maproulette.org/challenge/9339
• Uruguay Connectivity Check: https://maproulette.org/challenge/4106
• Uruguay Connectivity Check: https://maproulette.org/challenge/9338
• Uruguay Coastline Check: https://maproulette.org/challenge/8261
• Uzbekistan Sharp Angle Roads: https://maproulette.org/challenge/4231
• Vietnam Crossing Roads: https://maproulette.org/challenge/7987
• Vietnam Sink Islands and Impossible Routing: https://maproulette.org/challenge/7985
• Vietnam Floating Roads: https://maproulette.org/challenge/7988
• Vietnam Connectivity Check: https://maproulette.org/challenge/8906
• Vietnam Crossing Roads: https://maproulette.org/challenge/8908
• Vietnam Invalid Turn Restriction Check: https://maproulette.org/challenge/8915
• Vietnam Invalid Turn Restrictions: https://maproulette.org/challenge/9836
• Vietnam Malformed Roundabouts: https://maproulette.org/challenge/9834
• Vietnam Overlapping Lines: https://maproulette.org/challenge/9827
• Vietnam Road Link Check: https://maproulette.org/challenge/9832
• Vietnam Sharp Angle Roads: https://maproulette.org/challenge/7986
• Vietnam Sharp Angle Roads Update: https://maproulette.org/challenge/8913