{"id":615801,"date":"2026-09-06T00:54:09","date_gmt":"2026-09-06T00:54:09","guid":{"rendered":"https:\/\/www.newsbeep.com\/ie\/615801\/"},"modified":"2026-09-06T00:54:09","modified_gmt":"2026-09-06T00:54:09","slug":"on-september-11-2018-a-dutch-city-opened-a-30-meter-bike-path-built-from-hollow-prefabricated-modules-containing-the-recycled-equivalent-of-218000-plastic-cups-with-sensors-installed-inside-to-mea","status":"publish","type":"post","link":"https:\/\/www.newsbeep.com\/ie\/615801\/","title":{"rendered":"On September 11, 2018, a Dutch city opened a 30-meter bike path built from hollow prefabricated modules containing the recycled equivalent of 218,000 plastic cups, with sensors installed inside to measure temperature, loading and the number of bicycles crossing it"},"content":{"rendered":"

Roughly 218,000 plastic cups, in recycled-plastic terms, is what went into a single 30-meter stretch<\/a> of bike path in the Dutch city of Zwolle. Not asphalt, not concrete. A road you could ride a bicycle over, made from the kind of waste most of us drop in a bin without a second thought.<\/p>\n

On September 11, 2018, that path opened. The first recycled-plastic bicycle path<\/a> was unveiled in Zwolle.<\/p>\n

The obvious question is whether this was real infrastructure or green marketing dressed up as a road. The answer sits somewhere in the middle, and it is worth walking through why.<\/p>\n

What Zwolle actually opened<\/p>\n

The path is short, about 30 meters, and it was billed as the world\u2019s first PlasticRoad. Instead of a solid slab poured on site, the road is built from hollow boxes made in a factory that snap together like sections of a large plastic pipe laid flat.<\/p>\n

That hollow interior is the whole idea. The opening announcement<\/a> from the partners described the empty space as being beneficial for drainage. A normal road sheds water sideways. This one is designed to hold it underneath and let it drain slowly into the soil.<\/p>\n

The same announcement noted that across Europe, plastic products contain only 7% recycled plastic<\/a>. Against that backdrop, a road that absorbs around a thousand kilograms of the stuff is at least pointing in a direction the industry mostly hasn\u2019t gone.<\/p>\n

How the modular design actually works<\/p>\n

The inventors were honest that this was new ground. Anne Koudstaal and Simon Jorritsma said<\/a>, \u201cWhen we invented the concept, we didn\u2019t know how to build a PlasticRoad, now we know.\u201d<\/p>\n

What turns this from a plastic slab into an experiment is the sensors. The pilot was fitted with sensors inside the boxes to track temperature, the number of bikes crossing, and how the structure held up under load, which the partners called the first \u201csmart\u201d bike path in the world<\/a>. That part matters more than the marketing suggests. A short test section that reports its own data is exactly what you want if the goal is to learn whether the design works, rather than to simply declare that it does.<\/p>\n

The rainwater function got its own numbers later. According to a press release, the highest water level recorded inside the modules during heavy showers reached 48% of available storage capacity<\/a>, and the water soaked into the soil within two days.<\/p>\n

Who built it, and what it was meant to fix<\/p>\n

The concept came from two KWS engineers, Koudstaal and Jorritsma, who first sketched it in 2013<\/a>. It became a real product once pipe maker Wavin and energy company Total joined KWS, part of Royal VolkerWessels, in 2016<\/a>. A pipe company that knows how to make durable hollow plastic, and an energy company with a stake in polymers, is not a random pairing. It is roughly the skill set you would assemble if you wanted to turn plastic waste into something that can bear weight.<\/p>\n

The problem they were aiming at has two parts: the mountain of plastic that never gets reused, and the slow, disruptive way roads are usually built and dug up. On opening day the inventors framed it as a beginning, not a finish line. Koudstaal and Jorritsma said<\/a> the pilot was \u201ca big step towards a sustainable and future-proof road made of recycled plastic waste.\u201d That is the developers talking up their own product, so it is best read as ambition, not verdict.<\/p>\n

What the pilot has and hasn\u2019t proven<\/p>\n

A second pilot followed in Giethoorn later in 2018, and the numbers the partners reported afterward are genuinely interesting. By May 2020 the Zwolle path had logged its millionth crossing<\/a>, and VolkerWessels said the pilots had handled heavy loads. They also claimed a 50 to 70% cut in CO2<\/a> versus asphalt or concrete paths, and said the finished commercial design would be 2.5 times stronger than the test sections.<\/p>\n

We would urge some caution on those figures. They are impressive, and they all come from the partners themselves. As far as we can see, there is no independent, peer-reviewed check behind the CO2 number or the strength claim, and a million bike crossings over eighteen months is a real workout but not the same as proving a surface lasts decades.<\/p>\n

The team\u2019s own summary reflects that tension. Marcel Jager and Anne Koudstaal said<\/a>, \u201cWorking together with our clients, we have proven that our ground-breaking circular concept \u2013 a prefab road based on recycled plastic \u2013 is feasible in practice.\u201d Feasible in practice, yes, on the strength of two short pilot paths. That is a meaningful step, but not the same as proven at scale, over decades, by someone with no stake in the outcome.<\/p>\n

The venture began full production in 2021 and was later renamed CirculinQ<\/a>. It has since laid more sections across the Netherlands and abroad, with the system installed at 13 locations in the Netherlands, one in Belgium and one in Mexico<\/a>.<\/p>\n

This was a real experiment, well measured and honestly labeled as a pilot, that showed a strange idea could be built and ridden over. The bigger claims about sustainability and durability are promises the data hasn\u2019t fully cashed yet. That makes it worth watching, not worth celebrating as settled. Years on, the most useful thing about that 30-meter strip is still the sensors reporting back from inside it.<\/p>\n","protected":false},"excerpt":{"rendered":"Roughly 218,000 plastic cups, in recycled-plastic terms, is what went into a single 30-meter stretch of bike path…\n","protected":false},"author":2,"featured_media":615802,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22],"tags":[246,61,60,82],"class_list":["post-615801","post","type-post","status-publish","format-standard","has-post-thumbnail","category-environment","tag-environment","tag-ie","tag-ireland","tag-science"],"_links":{"self":[{"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/posts\/615801","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/comments?post=615801"}],"version-history":[{"count":0,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/posts\/615801\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/media\/615802"}],"wp:attachment":[{"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/media?parent=615801"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/categories?post=615801"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/tags?post=615801"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}