According to the source, the index is a congestion level and measures the increase in overall travel times when compared to a Free Flow situation. For example, a Congestion Level of 36 percent corresponds to 36 percent extra travel time for any trip, anywhere in the city, at any time compared to what it would be in a Free Flow situation.
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Traffic congestion in selected megacities APAC 2023, by city
In 2023, the congestion level of Bengaluru amounted to ** percent each, meaning that it took ** percent more time to get from one point to another compared to a free flow situation. Comparatively, the congestion level in Sydney and Hong Kong amounted to ** and ** percent respectively during the same year.
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TomTom. (January 10, 2024). Traffic congestion level in selected megacities in Asia Pacific in 2023, by city [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 27, 2026, from /statistics/915455/asia-pacific-traffic-index-in-megacities/
TomTom. "Traffic congestion level in selected megacities in Asia Pacific in 2023, by city." Chart. January 10, 2024. ÌÇÐÄÆƽâ°æ. Accessed July 27, 2026. /statistics/915455/asia-pacific-traffic-index-in-megacities/
TomTom. (2024). Traffic congestion level in selected megacities in Asia Pacific in 2023, by city. ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 27, 2026. /statistics/915455/asia-pacific-traffic-index-in-megacities/
TomTom. "Traffic Congestion Level in Selected Megacities in Asia Pacific in 2023, by City." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 10 Jan 2024, /statistics/915455/asia-pacific-traffic-index-in-megacities/
TomTom, Traffic congestion level in selected megacities in Asia Pacific in 2023, by city ÌÇÐÄÆƽâ°æ, /statistics/915455/asia-pacific-traffic-index-in-megacities/ (last visited July 27, 2026)
Traffic congestion level in selected megacities in Asia Pacific in 2023, by city [Graph], TomTom, January 10, 2024. [Online]. Available: /statistics/915455/asia-pacific-traffic-index-in-megacities/
