Road network of Mercury

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The road network of Mercury is the system of roads in Mercury and its territories. Roads are classified according to capacity and purpose, and the rules governing each classification of road vary between types. Drivers of motor vehicles are required to gain a driving licence in order to use the road network.

Classification of roads

Mercury has five classifications of roads, each with differing rules governing their use. A network of "expressways" spans the nation as a whole, being connected to towns and cities via smaller "dual carriageways" and "carriageways". Within towns and cities, the main routes are classified as "byways" while other roads are deemed as "access roads".

Road type	Description	Example sign	Speed limit in km/h (maximum)	Speed limit in km/h (residential)	Number of lanes (each direction)	Pedestrians/cycles allowed
Expressway	High speed, high capacity inter-state roads, primarily used to travel between major cities.	White text on a dark blue background with white border	130	85	3 +	No
Dual carriageways	High speed inter-city roads, used to travel between the expressway network and minor cities, or between two minor cities.	White text on a dark red background with white border	115	70	2 – 3	Only on pavement
Carriageways	Medium speed inter-town roads, joining dual carriageways or minor cities to smaller towns.	Black text on a yellow background with black border	100	50	1 – 2	Yes
Byways	Low speed inner-city roads.	Black capitalised text indicating the street name on a white background with black border	50 Not signed	50 Not signed	1	Yes
Access roads	Very low speed, low capacity inner-city roads.	Black sentence case text indicating the street name on a white background with black border	30	30	1	Yes

Signage

Orders

Order signs give legally binding instructions to traffic. Failure to adhere to the instructions given is an offence.

Stop
Give way
No entry
Merge in turn
One way road ahead
One way road to the left
(only at the end of a road)
One way road to the right
(only at the end of a road)

Speed limits

All speed limits in Mercury are given in kilometres per hour. The national speed limit is 130km/h.

Give way advance warnings

There are several signs that provide advance warning of an upcoming "Give Way" order.

Crossroads with no priority
Crossroads where the road crossing has priority
Merging onto new road ahead
Roundabout
Mini roundabout
T-junction

Warnings

Signs giving warnings are predominantly triangular in shape with a red border and black features. The two exceptions to this are the "Level Crossing" warning sign and the "Priority, Take Care" sign. The latter is used at junctions where vehicles are not instructed to give way to side roads, and advises drivers to be aware of other vehicles entering or crossing the road.