Road pricing seems now to be a certainty in the United Kingdom but since the charge is to limit congestion and reduce pollution there ought to be a variable charge dependent on how
environmentally sound a vehicle is. Such as inclusion into road pricing could encourage purchasers of cars to choose more environmentally friendly models and manufacntures to make more environmentally friendly cars. It would also seem pertinent to both improve railway networks as well as subsidising the cost of travelling on the railways further and also limiting the profit margins of railway companies to enable more affordable rail travel or renationalising the railways to enabler a fairer fare. Any introduction of road pricing ought also to include a time component making it cheaper to use a road at particular times of the day. Finally, a system of varying the number of lanes accommodating cars going in a particular direction such that where there are three or four lanes going in each direction the number of lanes is varied to accommodate the extra traffic going into a city area in the morning and out of the city at rush hour in the evening could also reduce congestion.