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London in Traffic Index 2021
In 2021, an increase in congestion levels was seen in London. The data suggests the average travel time increased by 1 min per day.
What does the congestion level mean?
A 33% congestion level means that on average, travel times were 33% longer than during the baseline non-congested conditions. This means that a 30-minute trip driven in free-flow condition will take 10 minutes longer when the congestion level is at 33%.
Congestion level 2021
How congested was London?
CONGESTION MONTH BY MONTH
How did the average congestion level change in 2021 compared to the same months in the previous years?
Anomalies in traffic throughout the year
When did we see the unusual highs and lows in the congestion levels?
2days of high traffic
Days with the congestion higher more than two times in comparison with respective days in 2019.
5days of low traffic
Days with the congestion lower more than two times in comparison with respective days in 2019.
What was the most congested day in 2021?
The highest average daily congestion
CHECK CHANGES IN TRAFFIC IN London THAT DAY
TOMTOM TRAFFIC STATS
Can we observe any traffic pattern changes?
In the past 18 months several pattern changes have been observed across cities throughout the world.See how the pandemic changed mobility patterns and compare it to the pre-pandemic state.
WEEKLY TRAFFIC CONGESTION BY TIME OF DAY
What time was rush hour in London?
Best time to avoid
What day of the week had the worst rush hour?
CHANGES IN WORKING DAYS TRAVEL PATTERNS IN 2019-2021
What did the traffic on an average working day look like each month across the years?
Averaged congestion level in selected month in:
Are rush hours still a thing?
Let's take a closer look into rush hours. How did they change?Are the roads busier than than they used to be?
WEEKDAY RUSH HOURS
How congested was London during rush hour?
Difference in rush hours
How congested was London during rush hour throughout 2021 in comparison to 2020 and 2019?
TIME LOST IN RUSH HOUR - PER TRIP
How much extra time was spent driving in rush hour?
TIME LOST IN RUSH HOUR - PER YEAR
How much extra time was spent driving in rush hours over the year?
119 hours = 4 days 23 hours 1 day, 6 hours less than in 2019
And what about emissions?
We can’t talk about congestion without mentioning its impact on the environment. Have you ever wondered how traffic and congestion levels affect CO2 emissions? What is the cost of congestion to the environment and what can we do to offset it?read more about methodology
How was London affected by traffic related emissions? What was the cost of congestion and its impact on the environment?
What is the impact of fleet composition on emissions?
emitted respective amount of CO2 per year
Where the yearly EV fleet
electricity demand in
London is717746 MWh
Spatial distribution of emissions throughout the day
When and where are greenhouse gases and pollutants emitted in London? See the changes in air quality due to traffic and congestion.
Total CO2 emissions in London over an average traffic weekday.
Daily Emissions Distribution
The X axis shows the time of day. The Y axis shows the emitted CO2 per hour of the day.
was emitted during average traffic day due to increased congestion (daily cost of congestion)