Dell Streak User Manual page 85

Map layer
The map layer displays streets, highways, buildings, main establishments, mass
transit stations, parks, rivers, lakes, mountains, boundaries, and so on.
Traffic layer
The traffic layer displays colored lines along the roads where real-time traffic data can
be collected. Green lines indicate good traffic speeds, yellow ones indicate slower
speeds, and brown ones indicate congested traffic. indicates where construction
work is taking place; indicates where the road is blocked.
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