Editing SimCity 4 (section)

====Mayor mode====
[[File:EntireSimcity4.jpg|thumb|300px|A densely populated city, including third-party modifications]]

In mayor mode, city building is conducted. Several advisors may give advice to the player on how to best manage a city. Players can build [[Transport|transportation networks]], which include [[road]]s, [[street]]s, [[Avenue (landscape)|avenues]], [[highway]]s, [[railway]]s, [[Rapid transit|subway lines]], and [[bus station]]s, draw out building zones, construct civic buildings, and adjust city funding and tax rates. Players can also terraform and plant trees in this mode, but in a much smaller scale than in god mode and costing money.

Zones are planned building plots that are empty at first but then populated by buildings depending on the type and density of the zone.  Areas of land can be [[Zoning|zoned]] as [[Residential area|residential]], [[Commerce|commercial]] or industrial areas in various densities where the city will begin to grow. [[Agriculture]] is a separate industrial zone-type, unlike previous versions of ''SimCity'', enabling farms to grow regardless of high [[Real estate appraisal|land value]], so long as demand exists for agriculture and agricultural zones have been provided. Zones are now automatically aligned towards roads and most buildings must be adjacent to a road in order to function properly; streets are automatically created when zoning on large tracts of land.<ref name="Kramer 55">{{cite book|last=Kramer|first=Greg|title=SimCity 4 Deluxe Edition: Prima's Official Strategy Guide|chapter-url=https://archive.org/details/simcity400greg/page/55|chapter-format=PDF|publisher=[[Prima Games]]|date=2003-08-31|page=[https://archive.org/details/simcity400greg/page/55 55]|chapter=Chapter 7: Developer Types and Occupancy|isbn=978-0-7615-4328-2|access-date=2008-10-28}}</ref>

Buildings are classified into several [[wealth]] levels, zone types, and building size stages, which are affected by the region's population and the city's condition. The game simulates [[urban decay]] and [[gentrification]] with buildings deteriorating and refurbished accordingly. Buildings originally constructed for occupation by higher wealth tenants can now support lower wealth tenants in the event surrounding factors forces the current tenants to vacate the building; this allows certain buildings to remain in use despite lacking its initial occupants.<ref name="Kramer 55"/> Buildings and lots can be constructed on [[slope]]s.

Civic buildings can be constructed that need constant funding to work properly, such as [[school]]s, [[hospital]]s, [[park]]s, [[police station]]s, [[jail]]s, and [[fire station]]s. These buildings come in two or more sizes compared to the single, universal types that were used in previous games. Settlements also need [[Public utility|public utilities]] such as electricity with more or less polluting and more or less expensive types of power stations, water pumps, water purification plants, and [[waste management]] services. Facilities that had previously provided citywide coverage, such as [[Education|educational facilities]] and [[Medicine|medical facilities]], have been modified to provide more limited coverage, as it has been with police stations and fire stations in previous ''SimCity'' titles.<ref name="Kramer 200–203">{{cite book|last=Kramer|first=Greg|title=SimCity 4 Deluxe Edition: Prima's Official Strategy Guide|chapter-url=https://archive.org/details/simcity400greg/page/200|chapter-format=PDF|publisher=[[Prima Games]]|date=2003-08-31|pages=[https://archive.org/details/simcity400greg/page/200 200–203]|chapter=Chapter 17: Utilities|isbn=978-0-7615-4328-2|access-date=2008-10-28}}</ref>

Funding can be adjusted for individual buildings rather than having to change the funding to all buildings, allowing users to specify how much money should be spent to supply a service in accordance to the local population. Maintenance expenses for public utility facilities will increase as they age. The maximum output of facilities also decreases as they get older, with the rate dependent on the facility's percentage of its capacity being used and level of funding.<ref name="Kramer 200–203"/> <!-- To fit into the article's topic, these statistics refer to the original SimCity 4 release only, this does not include Rush Hour. -->
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