Traffic Layer: How to Interpret It

Traffic layer colors are useful only when interpreted in context. A red segment can be harmless on a long route with buffer, while a yellow segment near a critical turn can break your schedule. This guide shows how to translate traffic visuals into route actions that improve outcomes.

Interpret color with route context

Do not evaluate congestion color in isolation. Evaluate where it appears in the route and how long its delay persists. A short red segment near origin may clear quickly. A recurring yellow-to-red transition near destination may indicate queue behavior that worsens as arrival time approaches.

Use pattern plus live signal

Live traffic is one snapshot. Pattern behavior shows probability. Strong timing decisions combine both. If pattern history says congestion ramps sharply 20 minutes after your current departure window, adjust now instead of reacting later under higher pressure.

Common interpretation mistakes

• Switching routes for every small color change without threshold rules.
• Ignoring destination-area congestion while overfocusing on early-route flow.
• Assuming alternate routes have equal parking and last-mile conditions.
• Treating current speed as stable over the full trip horizon.

Decision framework

Use a three-question framework: Does this congestion threaten my primary objective? Does alternate routing reduce risk materially? Does switching create new complexity that outweighs delay savings? If all three answers support a change, reroute. If not, hold your route and monitor at checkpoint.

For recurring trips, store delay notes by corridor and departure window. Over time this becomes your internal traffic intelligence layer and improves future decisions more than single-day reactions.