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Best time to leave — SP Mukherjee Road

Hour-by-hour average speeds and travel times across this Kolkata corridor, measured from real road data.

Route measured in partnership with Kolkata Traffic Police. Free-flow reference: 29.2 km/h.
Fastest hour
4–5 AM
31 km/h · 2 min travel
Slowest hour
7–8 PM
14.9 km/h · 5 min travel
Peak slowdown
49%
Slower than free-flow

Speed by hour of day (IST)

01234567891011121314151617181920212223
Fastest hour Slowest hour Other hours Bar height = % of free-flow speed

All hours (IST)

Hour (IST)Avg speedTravel timevs free-flow
12–1 AM 27 km/h 3 min 39s −8%
1–2 AM 28.4 km/h 3 min 30s −3%
2–3 AM 29.4 km/h 2 min 24s +1%
3–4 AM 30.3 km/h 2 min 20s +4%
4–5 AM 31 km/h 2 min 17s +6%
5–6 AM 29.7 km/h 2 min 25s +2%
6–7 AM 26.3 km/h 3 min 46s −10%
7–8 AM 22 km/h 3 min 22s −25%
8–9 AM 20.2 km/h 4 min 38s −31%
9–10 AM 19.1 km/h 4 min 51s −35%
10–11 AM 18 km/h 4 min 5s −38%
11 AM – 12 PM 17.6 km/h 4 min 9s −40%
12–1 PM 17.7 km/h 4 min 11s −39%
1–2 PM 18.1 km/h 4 min 0s −38%
2–3 PM 18.8 km/h 4 min 51s −36%
3–4 PM 18.6 km/h 4 min 58s −36%
4–5 PM 17.2 km/h 4 min 29s −41%
5–6 PM 15.6 km/h 5 min 57s −47%
6–7 PM 15.3 km/h 5 min 3s −48%
7–8 PM 14.9 km/h 5 min 59s −49%
8–9 PM 16.7 km/h 4 min 24s −43%
9–10 PM 19.4 km/h 4 min 45s −34%
10–11 PM 23.2 km/h 3 min 8s −21%
11 PM – 12 AM 25.7 km/h 3 min 49s −12%

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