Iconology

Iconology in the Cities: Skylines world is a term used to refer to the icons appearing above a building or road connection that may be experiencing a problem or multiple problems. These icons indicate what type of problem is issued and will need to be sorted out as soon as possible. Prolong problems will be displayed in a red icon and become in abandoned if the issue is not solved. Buildings without an icon are generally happ with the current needs.

Icons

There are multiple icons representing problems for each building/road/transport lines.

Buildings

Building Type	Problem	Description
All	Not enough electricity	The power icon indicates shortage of electricity. During this phase, if not enough power is provided to the city or areas are not covered by power lines and power distribution among buildings, the affected buildings suffering from electricity shortage will abandon the building.
	Not enough water	The water icon indicates shortage of water. During this phase, if not enough water is supplied to the city or areas are not covered by water pipes, the affected buildings suffering from shortage of water will abandon the building.
	Garbage has piled up	Garbage trucks need to collect garbage that has accumulated in a building. Buildings need to be covered by garbage disposal services. Otherwise, the building will become abandoned.
	A dead person is waiting for transport	These issues will appear when a citizen dies from natural causes. Hearses must transport deceased people to cemeteries or crematoriums. Prolong issue will be unpleasant for the citizens in the building, resulting in the building being abandoned.
Commercial	Not enough goods to sell	Businesses not receiving enough goods will suffer from lack of sellable products, resulting in loss profit. Resolving this issue is to generally zone more industrial buildings, or otherwise plan better roads for commercial trucks to transport goods to businesses.
	Not enough customers	No customers visiting commercial buildings, resulting in the building getting abandoned.
Commercial Industrial Office	Not enough workers	Low amount of workers at an industrial, commercial, or office building prevents operation, resulting in abandonment.
	Not enough educated workers	Workers are not educated enough and will abandon the building after a while.
All	Too few services	Not enough services are available in the area and makes the building abandoned eventually.
Industrial	Not enough raw materials	Trucks are unable to reach the industrial building, therefore it cannot produce goods. The building will become abandoned.
	Not enough buyers for products	Not enough commercial area in the city prevents goods from being sold, preventing the building from operating which leads to abandonment.
Public services	Not enough fuel	Power-generating buildings using fuel are not fully supplied, resulting in reduced processing rates such as lower electrical output than usual. Trucks will need an ideal path to deliver fuel to industrial buildings.
All	Sewage is backing up	Buildings that cannot dispose of sewage will become quite unpleasant to the citizens, later resulting in decreased health and then abandonment.
	Building is on fire	A fire has set the building ablaze and will eventually cause it to burn to the ground if firefighters cannot reach it on time.
	Building is flooding	Water has invaded a building and will cause it to get abandoned and can even cause it to collapse if too much water takes over it.
	Crime rate is high	High crime makes it unsafe in the area, making citizens feel uncomfortable and will cause the building to become abandoned.
	Abandoned	Abandoned buildings are buildings that no longer function and must be removed manually unless there is demand for the zone type.
	Burned Down	A building was on fire for too long and it has been destroyed. A disaster response unit can search the building if the player owns the Natural Disasters DLC.
	Collapsed	A building has been destroyed from a disaster or a flood and must be searched if the player has a disaster response unit.

Roads

Problem	Description
Snow has piled up!
No road connection	One-way roads and highways require the connection from a starting point to an end point. Improper connection will display this icon, and vehicles will not travel on incomplete roads without proper connection. Resolving this issue can be accomplished by connecting the road to another road. Two-way roads do not need to be connected to another road as it provides the chance for vehicles to make u-turns.

Public Transport lines

Problem	Description
Needs to be connected to lines	A depot for vehicles has been placed but no lines are there.

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