Last week, London Mayor Ken Livingstone confirmed his £5 charge to drive into the capital.
Meanwhile, commissioner for integrated transport David Begg suggests a congestion charge for all UK trunk roads. What difference would congestion charging make to your travel habits?
If I can make a choice about avoiding congestion I do so already, regardless of charges.
After all, travel selection is largely comfort and ease sensitive rather than cost sensitive: not many people simply choose the cheapest to run car. So my guess is it won't change anything very much until the revenue is fed back into improving the alternatives.
Jon Balley, 51, water engineer, Buckinghamshire I have conjectured the attraction of a sedate 4mph 'steam' along the nearby canal to work. Perhaps this is too leisurely to be realistic. Then again, in 10 years' time, chairman Begg may well be seeking a 44% congestion reduction on this as well. It must be doubtful if the required improvements in public transport infrastructure will ever be realised in time for congestion charging - a mighty blunt hammer to crack this proverbial nut.
Robin Thomson, structural engineer, Livingston.
When I need to drive into London I will go regardless. My travelling by car to London is minimal - I tend to now go by train - and for any business travel requiring the car, the company will have to pay. I just hope that the charges will make employers require more staff to work from home.
Paul Russell, 44, customer service director, Peterborough It will make very little difference to me. I live in the country, and much of my work can be done by e-mail and via the internet. Employers should permit more remote working which, with no interruptions, can be more productive.
Geoff Home, 52, director, North Yorkshire Each day I drive 32 miles from the coast into Glasgow. I would rather not drive, but the journey is twice as long by bus or train. In the short term, I would re-route to avoid some of the charges, balancing these with journey time.
In the longer term, I would hope for better public transport.
Grant Scholes, 36, senior bridge engineer, Glasgow Because of where I live, congestion charging would have no direct effect on my travel habits. On the occasions I need to travel to the central belt I would go, congestion charges notwithstanding.
Dave Tomlinson, 56, special services manager, Argyll Urban or trunk road charging would not influence my travel patterns as I live in a rural area and make long journeys by train. I agree that radical change is needed if congestion is to be limited to its present level or reduced.
Ken Blenkharn, 60, local government engineer, Cumbria