What does control chart e stand for?

E is the axis number, which is used to distinguish the axes.

Usually the horizontal axis is represented by numbers, and the vertical axis is represented by letters. The building is located by the axis, which is convenient for drawing and reading. The control chart reflects the spatial development plan of a city. Generally speaking, the government has formulated a regional development outline, and then urban development is generally along this direction. This land is residential, so build a house; This land is for education, so it will be used to build schools; This land is commercial land, so it will be used to build shopping malls; This land is commercial land, so it will be used to build office buildings; This land is industrial land, so it will be used to attract investment and build factories. ...

Land use in control planning is generally distinguished by color, with yellow indicating residential land, red indicating commercial land, pink indicating educational land, brown indicating industrial land and gray indicating reserve land.

You can take the regulatory planning of Daya Bay Wanda area as a reference. At the intersection of Longhai No.2 Road and Daya Bay Avenue in Wanda District, the yellow residential areas are concentrated in the south of Longhai No.2 Road, representing Muma Lake, Remnant State Longting, Zhongcui Huacheng Bay, Hengda Yuelongtai and other residential areas. The red plots on the north side of Longhai No.2 Road, such as wanda plaza and Emerald Hill Yitian Shopping Mall, are all commercial buildings.

The pink plot reflects Xiyi Primary School, Peking University Peiwen and Daya Bay No.1 Middle School in the south of Wanda.

As for the orange island plot in the north of Wanda, it reflects the land in the village and is currently an immigrant village.