Test answer

(1) There are three types of shopping malls: shopping malls in the middle of the street, shopping malls on one side of the street and shopping malls on both sides of the street;

(2) The following principles should be mastered in the design of shopping malls:

First, you must build a path;

B, there should be a green barrier composed of dense hedges and tall trees between the roadway and the green belt of the avenue, and the facade should be arranged in the form of external high and internal bottom;

C, building a sketch;

D, leave the entrance;

E, win with colorful plants;

F natural type should be used for large format and natural type should be used for small format.

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Road system is the infrastructure in the construction of modern society, and the selection and application of street trees have positive environmental and ecological effects on improving road service system and quality. The main cultivation places of street trees are sidewalk green belt, dividing line green island, citizen square path, riverside avenue and urban and rural roads. What problems should be paid attention to in practical application and what principles should be followed in tree species selection?

The practical application of street trees should pay attention to the following aspects:

1 According to the road construction standards and the specific circumstances of the surrounding environment, determine the appropriate tree species and varieties, and select the appropriate tree body and tree shape. If there are restrictions such as power and communication lines above the planned planting belt, trees whose final growth height is lower than the elevation of overhead lines should be selected to save the cost of regular pruning.

If there are enough funds, equipment and pruning technicians to maintain the high-level requirements for tree breeding, we can choose tall trees, adopt correct pruning methods and avoid the restrictions of overhead lines, so as to obtain satisfactory use results.

When planting plastic, the branches of trees should be high enough to avoid the normal walking of passers-by and vehicles, and to avoid accidents. Especially in areas with small turning radius and poor line of sight when turning, more attention should be paid.

The selection of tree specifications should be appropriate and should not exceed the requirements of the landscape ratio with buildings on both sides of the street. Its size and growth form should meet the specific requirements of design and stand the test of time.

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What is expressway, and what parts does its cross section include?

Expressway is a modern expressway with central median, four-lane interchanges and complete safety protection facilities, which is specially designed for fast driving of vehicles. The cross section includes: central isolation belt, roadway, shoulder, guardrail, slope, roadside safety belt and protective net.

What problems should be paid attention to in the greening design of Binhe Road?

1. When the water surface is narrow and there is no scenery, the layout is simpler. 2. When the revetment scenery is long, a wider green belt and garden facilities shall be set along the water edge.

3. Create conditions for tourists to be hydrophilic. 4. Adopt natural greening method. 5. Choose tree species that can adapt to water and humidity and tolerate salt and alkali.

Key points of highway greening:

1) When the pavement width is less than 9m, trees cannot be planted on the shoulder. When the pavement width is more than 9m, trees can be planted at a distance of more than 0.5m from the pavement or on the slope.

2) Sufficient safe sight distance must be reserved at intersections, and only low shrubs and ground cover plants can be planted in bends. Trees shall not be planted within 5m near bridges, culverts and other structures.

3)

Because the road is long, in order to benefit the driver's visual and psychological conditions, avoid large-scale infection of pests and diseases, and enrich the landscape changes, it is generally 2~3km or use the terrain transformation to transform tree species, with native tree species and tree species with less pests and diseases as tree species.

Yes, the layout can combine trees and shrubs.

4) In the vicinity of the scenic spot or on the road in the scenic spot, plant planting should not block the sight of the scenery.

Key points of railway greening:

1) Planting trees should be more than 10m away from railings, and shrubs can be planted more than 6m.

2) Trees and shrubs that block the line of sight shall not be planted within the line of sight of 50m highway and 400m railway at the intersection of railway and highway.

3) Trees are not allowed to be planted within the inner diameter of the railway bend 150m, but small shrubs and herbaceous ground cover plants can be planted.

4) Trees shall not be planted within the range of locomotive signal light 1200m, but small shrubs and ground cover plants can be planted.

5) There should be a 30-50m protective green belt around the railway crossing the urban area to block noise, so as to reduce the noise interference to residents. The form of green belt should be closed.

6) Facilities such as flower beds, pools, fountains, statues, seats, etc. can be appropriately set up for the greening of the railway station. And planting ornamental plants such as shade trees for passengers to have a short rest.