Pick this up from the internet, maybe of interest if you are planning to travel across Belgium:-
From next Sunday 1 January 2017 the normal speed limit on ordinary roads in the Dutch-speaking Vlaanderen region of Belgium that lie outside built-up areas drops from 90 km/h to 70 km/h.
In some ways this isn’t a huge change as a 70 km/h signed speed limit already applies to a greater length of roads in this region than does the existing unsigned 90 km/h limit – and many of these roads will acquire new (90) signs permitting one to drive at up to 90 km/h along them – indeed one of the arguments for making the change is to reduce the cost of installing speed limit signs.
However, the new limit does introduce potential traps for drivers, particularly those from other countries unused to Belgian speed limit signing principals, because the appropriate “standard” limit is not normally signed, it just applies. In particular, if one passes a road junction and a speed limit isn’t signed, the standard limit applies even though a higher (or lower) signed limit applied up to the junction. Similarly when one passes from a dual-carriageway to a two-way road (outside a built up area) the limit will automatically drop from 120 km/h to 70 km/h unless there are signs indicating otherwise. Finally, the speed limit will also automatically drop from 90 km/h to 70 km/h when one passes from one of the other regions into the Vlaanderen region on an ordinary road (as indicated by a yellow sign with a black lion and the name of the province on it).
The Belgian speed limits from 1 January 2017 outside built-up areas, unless higher or lower limits are signed, will be:
Autoroutes/Autosnelwegen and dual-carriageways with at least 2-lanes each way: 120 km/h
Other roads in the Wallonie and Brussels-Capital regions: 90 km/h
Other roads in the Vlaanderen region: 70 km/h
The speed limit within built-up areas, again unless higher or lower limits are signed, remains at 50 km/h.
The specially signed 30 km/h zones in the vicinity of schools and other sensitive areas (and the similarly signed but very occasional 50 km/h zones) have limits which apply at all times between the start and end signs even though a road junction may be passed in between them.
Some autoroute/autosnelweg stretches already have cameras which recognise car registrations and which are used to enforce average speed limits and there will be a major installation programme during 2017 to greatly increase the extent of the stretches with this type of enforcement – you have been warned!