Leiden, The Netherlands
Traffic conditions
Leiden traffic in 2025
How busy did Leiden get during rush hour?
Time lost due to traffic in rush hour in 2025
37 hours = 1 day, 13 hours
1 hour 16 min less than in 2024.
- Major delay
- Minor delay
- No delay
- Closed
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The global traffic challenge in numbers: What the TomTom Traffic Index data tells us
For more than 15 years, the TomTom Traffic Index has monitored the health of our roads, capturing its minute-by-minute pulse to assemble a year-long overview of how vehicles have moved through hundreds of our world’s major cities. This year’s edition tells a painfully familiar story. As cities grow and journeys multiply, the challenge of managing city road networks continues to loom over municipalities, town planners and transit authorities. The Traffic Index confirms that keeping traffic moving has never been more difficult. How can we keep tackling such a challenge? With data, lots of data.
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Building road network resilience: How to keep moving through disruption
Transport networks are the complex circulatory systems of our cities, states and countries. When working well, they enable the economy, social connection and the movement of goods and services. But when a sudden disruption hits, whether it’s a flash flood, major event or infrastructure failure, these same systems can rapidly become a source of difficulty. Congestion escalates as mobility becomes most urgent, freight delays spread across supply chains and emergency vehicles struggle to reach people who need help most.
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Roads to efficiency: Data-driven transport planning in New York, Texas and California
Transportation gives our cities life, enabling people and goods to flow through increasingly complex urban environments. But in the past decade, congestion has intensified across the United States. It’s getting harder to predict and more expensive to leave unchecked. At the same time, cities, governments and planners now have access to smarter, data-driven tools to manage today’s rising mobility challenges.
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