Surface Category
Paved (darkest): concrete, asphalt, paving stones
Compact (medium): compacted, gravel
Loose (lightest): ground, dirt, grass, sand
Hover over route segments for exact surface details
Tracktype (line style + opacity)
grade1: best maintained (━━━━ solid)
grade2: good (▬ ▬ ▬ long dashes)
grade3: moderate (▬ ▬ ▬ normal dashes)
grade4: poor (▬ ▬ ▬ short dashes)
grade5: very poor (∙ ∙ ∙ ∙ dots)
unknown: (- - - dashed)