Calculation method of composite slope in road design

If the longitudinal slope is 3% and the transverse slope is 4%, the composite slope is 5%, and the root sign (3 * 3 + 4 * 4) = 5

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1. How to calculate and set out the road slope It is known that the elevation of point a is 0.200, the elevation of point B is 0.000, the distance between two points is 21m, and the slope is 1%. How to use the level to measure the slope and set out
2. I need to know the meaning and difference of road slope and longitudinal slope and how to calculate them
3. What is the drainage slope ratio of municipal roads? What are the longitudinal and transverse slopes? How to calculate?
4. How to calculate the slope of 1:1.2 or 1:1.5
5. Please tell me how to draw the slope, the first figure
6. The width of the left subgrade, the width of the right subgrade, the filling area and the excavation area in the subgrade cross section are indicated by letters!
7. In cross section design of urban road, assuming that the width of subgrade is 43M, how to arrange cross section
8. Road width standard It is said that science Avenue in Zhengzhou high tech Zone will continue to be built to the West. The new road is said to be 120 meters wide. Does this meet the national standard? The standards and guidelines (97 Edition) states that: Expressway road width (m) 60-100 Expressway road width (m) 60-80 Main road width (m) 40-60 Width of secondary trunk road (m) 30-40 From: Shenzhen Planning Bureau
9. How to calculate the width of urban roads and highways? I often see that * * road is 80 meters wide and 8 lanes in two directions, or * * road is 12 meters wide and 4 lanes in two directions. I don't understand it. The first road with 80 meters wide can't get 80 meters when I look left and right, and the visual inspection is 30-40 meters at most (although it's not accurate, but it's not much different. For example, the 50 meter long runway and the 80 meter wide road obviously show that the runway is longer at a glance). Another example is the 8.5 meter wide road, where three people hold hands and are wider than the road, Three people add up to no more than six meters Please give an example. It's better to have a schematic diagram,
10. How wide is the effective width of the road
11. How many degrees is the 5% road slope? How to calculate it? Please be more detailed
12. What is the allowable deviation value of subgrade slope? (the code says that it meets the design requirements). There will be some deviation
13. The fill slope is 20 meters long and 5 meters high. According to the gradient of 1:1.5, how much is the volume?
14. What is slope gradient?
15. How to calculate the slope of fill slope? Is it slope width divided by height?
16. Highway slope gradient measurement How to measure the slope of highway slope and what instruments are generally used?
17. What is the reason for changing the slope gradient of subgrade excavation from 1:0.5 to 1:1
18. How to determine the slope gradient of foundation trench inspection
19. Stair step method
20. What is the standard requirement of stair step width