Editing Highway system in Taiwan (section)

==== Length, exits, and entrances ====
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Image:TaiwanFwy3GuansiSinpuExit.jpg|Exit advance
Image:TaiwanFwy3Jct.jpg|Freeway entrance
Image:Taiwan Freeway Exit Sign.gif|The pre-2006 Taiwan freeway exit sign. The 27 indicates that the exit is the 27th exit, calculated from the northernmost / westernmost point of the freeway.
Image:Taiwan Freeway New Exit Sign.gif|The post-2005 Taiwan freeway exit sign. The 27 indicates that the exit is located at the 27th kilometer, calculating from the northernmost / westernmost point of the freeway. Provincial expressways also allow it in 2007.
</gallery>
Every one tenth of a kilometer is marked on the freeway with Arabic numerals to indicate freeway mileage, which indicates the number of kilometers away from the northern end or western end of the freeway.  Exit numbers are based on the freeway mileage.  With the notable exception of exit-only signs, which are only expressed in Chinese (but with a right arrow indicating an exit-only lane), exit notification and system route reminder signs in the freeway system are almost identical to their US counterparts.

[[Image:Taiwan Freeway Exit Only Road Diagram.PNG|thumb|150px|A diagram that distinguishes an exit only lane from the regular lanes. The exit only lane has a right-turn arrow symbol and Chinese characters that say "Exit exclusive lane."]]

There are four types of exit notification signs. The first notification sign appears two kilometers before the exit, providing the destination name and an Exit 2&nbsp;km notice.  The second sign appears one kilometer before the exit, providing the destination name and a Right Lane notice. The Right Lane notice warns the exiting driver to start switching to the right lane in preparation to exit and does not necessarily indicate that the right lane is an exit-only lane. The third sign appears a few hundred meters before the exit, providing the destination name and a right tilted arrow. The fourth sign is located at the exit and says Exit with a tilted right arrow.

[[Image:Taiwan Freeway 2km Exit Sign.gif|thumb|150px|Sign that indicates that the exit is two kilometers away.]]

[[Image:Taiwan Freeway 1km Exit Sign.gif|thumb|150px|Sign that indicates that the exit is one kilometer away.]]

Exit notification signs were slightly altered in December 2005. The green exit mileage label on top of the exit notification sign has been replaced with a yellow exit mileage label accompanied with the Chinese code name of the interchange. The Chinese code name of the interchange does not necessarily reflect the destinations listed on the exit signs and may represent the general location of the freeway interchange.

Long rectangular-dash dividers usually separate normal lanes. Short rectangular-dash dividers usually indicates a lane that is ready to turn into an exit, a merging lane, or a lane reserved for vehicles that have difficulty climbing high grade regions of the freeway.

Freeway entrances may have traffic lights to control the flow of vehicles entering the freeway.