Second, increase the number of lanes and increase the capacity (but the capacity of the road depends on the intersection).
Third, if the number of lanes is not increased, the space on both sides of the road can be increased, and it is also for the safety of drivers and pedestrians.
Fourth, drivers will have better sight distance at intersections.
Extended data:
Road widening can temporarily alleviate traffic jams. At present, the direct cause of urban traffic congestion is the sharp increase in the number of private cars, which has exceeded the carrying capacity of the number of vehicles planned and designed in the past. Therefore, widening roads can directly increase the number of vehicles. But this effect is only temporary.
Secondly, proper road widening can improve the urban landscape. The narrowness of urban roads not only hinders the passage of vehicles, but also affects the landscape and temperament of a city. Too narrow roads and the influence of buildings on both sides will inevitably give people a feeling of depression, so appropriately widening roads is conducive to creating a healthy image of the city with an open mind and atmosphere.