Road Alignment

There are many big trees on its west bank along the main highway to Drukgyal Dzong. It is strongly recommended to preserve these trees in compliance to the Environmental Conservation Policy. On the other hand it is necessary to widen the road up to 15m ROW for the future increase of traffic. But it is not advisable to widen the road towards the river because it is very close to the river at northern part of the area. So, it has been planned to widen the road towards western side of the road and keep these trees in the middle of the road and create a median. Most of these trees are POPLAR trees. It is said that poplar tree causes allergy. But according to a recent study at University of Hokkaido in Japan, the pollen of poplar tree is not so harmful in comparison with other trees which bring severe allergy. But it can be replaced in future by the Tree of Heaven or China Bead Tree. Unlike the existing Poplar trees it has no adverse effect on human beings and can grow in any environment.
Trees along the highway to be preserved

The secondary and access roads have widths of 4m, 7m or 10m (ROW). These roads are designed to facilitate access to every existing building. Most of them should be one way road to promote traffic circulation and efficient management.

Trees along the highway to be preserved