Opposers, among which are environmentalists, state that the build of the missing link would only result in more traffic and thus more congestion and this would harm the environment. Since the A15 and the A29 are currently being widened, this section of the A4 seems more and more unlikely to be built. The motorway section between Klaaswaal and interchange Sabina near Dinteloord is currently known and designated as the A29, but the intention is to include it in the A4 motorway and designate it as such in the future. When the missing link between interchange Benelux and Klaaswaal is completed, this section will be renumbered to A4, in order to create a continuously numbered motorway between interchange Kethelplein and the Belgian border. For now, however, this section of road is still being numbered as 'A29', to avoid confusion with motorists.