The routes of Xi’an buses (No. 1---200) are urban bus routes.

According to Xi'an's bus naming and numbering rules,

Urban bus lines: No. 1 to No. 200.

Urban-suburban bus lines: 201 to 299.

Suburban-suburban and outer suburban bus lines: 301 to 399.

Public-private bus lines: No. 401 to No. 499.

Chang'an bus line: No. 4-XX.

State-operated CMB bus lines: No. 501 to No. 599.

Special bus lines (double-decker or air-conditioned buses): No. 601 to No. K699.

Private CMB bus lines: No. 701 to No. 799.

Sightseeing routes: No. 800 - No. 899.

Urban and rural bus lines: No. 901 to No. 999.

Bus lines with Chinese characters: Education Line, Wulong Line, High-tech Line 1, Airport Line.

Bus ring lines: Second Ring Road Line 1, Second Ring Road Line 2.

Travel lines: You 1 to You 10, Huanshan Line 1, Huanshan Line 2.

Overnight lines (operating hours from 23:30 to 5:30 the next day): overnight line 1 to overnight line 4.

Lintong bus line: Lintong XXX Road.

Yanliang bus line: Yanliang XXX Road.

Huxian bus line: Huxian XXX Road.

Lantian bus line: Lantian XXX Road.

Gaoling bus line: Gaoling XXX Road.

With the changes in Xi'an's urban area, many lines no longer comply with the numbering rules, but they are still in use. Attached is a list of bus routes within No. 200 for reference.