In order to help the personnel of construction enterprises further understand the specific contents of Code for Planning and Design of Urban Road Greening, Zhong Da consulted and compiled relevant materials, and the basic overview is as follows:
Bian Xiao sorted out the relevant contents of the Code for Planning and Design of Urban Road Greening, including: general principles, terminology, road greening planning, road green belt design, traffic island, square and parking lot green space design, road greening and related facilities, among which the basic contents of road greening planning are:
3. 1 road green space rate index
3. 1. 1 When planning the width of road red line, the road green space rate should be determined at the same time.
3. 1.2 Road green space rate shall meet the following requirements:
3. 1.2. 1 The green rate of landscape roads shall not be less than 40%;
3. 1.2.2 The green rate of roads with red line width greater than 50m shall not be less than 30%;
3. 1.2.3 The green rate of roads with a red line width of 40-50m shall not be less than 25%;
3. 1.2.4 The green rate of roads with red line width less than 40m shall not be less than 20%.
3.2 Road green space layout and landscape planning
3.2. 1 Road green space layout shall meet the following requirements:
3.2. 1. 1 The width of the green belt is not less than 1.5m; the width of the main road green belt is not less than 2.5m; the width of the street tree green belt is not less than1.5m;
3.2. 1.2 Split green belts and traffic island green spaces in the middle of primary and secondary roads shall not be arranged as open green spaces;
3.2. 1.3 Roadside green space should be combined with other green spaces outside the red line of adjacent roads;
3.2. 1.4 Sidewalks are adjacent to commercial buildings, and roadside green belts can be merged with roadside tree green belts;
3.2. 1.5 When the environmental conditions on both sides of the road are quite different, the roadside green belt should be arranged on the side with better conditions.
3.2.2 Road greening landscape planning shall meet the following requirements:
3.2.2. 1 In the planning of urban green space system, the greening landscape characteristics of landscape roads and main roads should be determined. Landscape roads should be equipped with plants with high ornamental value and local characteristics, and combined with street scenes; The main road should reflect the urban road greening landscape;
The greening of the same road in 3.2.2.2 should have a unified landscape style, and the greening forms of different sections can be changed;
All kinds of green spaces on the same road in 3.2.2.3 should cooperate with each other in plant configuration, and should coordinate the relationship between spatial level, tree species combination, color matching and seasonal changes;
3.2.2.4 is adjacent to mountains, rivers, lakes and seas, and its greening should be combined with the natural environment to highlight the natural landscape characteristics.
3.3 Selection of Tree Species and Ground Cover Plants
3.3. 1 Plants with stable growth, high ornamental value and good environmental benefits should be selected for road greening.
3.3.2 Deciduous trees should be selected for planting green belts and street trees in cities in cold and snowy areas.
3.3.3 Street trees should be trees with deep roots, high branching points, large crown, shade, vigorous growth, adaptability to urban road environmental conditions and no harm to pedestrians due to fruit drop.
3.3.4 flowering shrubs should be selected with lush flowers, long flowering period, strong growth and easy management.
3.3.5 Hedgerow plants and foliage shrubs should choose trees with strong germination, dense foliage and pruning resistance.
3.3.6 Ground cover plants should be woody or herbaceous foliage and flowering plants with dense branches and leaves, strong growth potential, few pests and diseases and easy management. Among them, lawn ground cover plants should be selected with strong germination ability, high coverage, pruning resistance and long green period.
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