| Road Type | Highway Code | Route | Speed Limit (Cars) | Speed Limit (Buses and Trucks) |
|---|---|---|---|---|
| National Highways | NH 2 | Kolkata – Delhi | 80 km/h (50 mph) | 60 km/h (37 mph) |
| (old NH 34) | ||||
| NH 6 | Kolkata – Siliguri | 80 km/h (50 mph) | 60 km/h (37 mph) | |
| (old NH 31) | ||||
| NH 31 | Siliguri – Darjeeling | 60 km/h (37 mph) | 60 km/h (37 mph) | |
| NH 34 | Kolkata – Dhaka (Bangladesh) | 80 km/h (50 mph) | 60 km/h (37 mph) | |
| NH 60 | Kolkata – Kharagpur | 80 km/h (50 mph) | 60 km/h (37 mph) | |
| State Highways | SH 1 | Bongaon – Kolkata | 60 km/h (37 mph) | 60 km/h (37 mph) |
| SH 2 | Bankura – Kolkata | 60 km/h (37 mph) | 60 km/h (37 mph) | |
| SH 3 | Durgapur – Kolkata | 60 km/h (37 mph) | 60 km/h (37 mph) | |
| SH 4 | Bardhaman – Kolkata | 60 km/h (37 mph) | 60 km/h (37 mph) | |
| SH 5 | Krishnanagar – Kolkata | 60 km/h (37 mph) | 60 km/h (37 mph) | |
| Expressways | Durgapur Expressway | Durgapur – Kolkata | 120 km/h (75 mph) | 100 km/h (62 mph) |
| Kalyani Expressway | Kalyani – Kolkata | 120 km/h (75 mph) | 100 km/h (62 mph) | |
| Kona Expressway | Kolkata – Haldia | 120 km/h (75 mph) | 100 km/h (62 mph) | |
| Belghoria Expressway | Kolkata – Salt Lake | 120 km/h (75 mph) | 100 km/h (62 mph) |
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