Urban planner Joost Váhl (1939) made a name for himself as an activist and advocate of the mixing of traffic where the dominance of the car had to be curbed while pedestrians and cyclists were given more space. In Delft he laid the first speed bump in the Netherlands. This is one reason why he is known as the inventor of the so-called 'woonerf' or living street, although he himself is not in favour of the term as his goal is to mix traffic types and not create separated zones.
Váhl was also an early advocate of a more varied and user-friendly green environment with an eye for biodiversity. He preached the transition 'van rozenstruiken naar (on)kruiden’ (‘from roses to herbs and weeds’) in urban neighbourhoods for a more diverse green area. He criticised the large-scale, monotonous residential districts of the sixties and seventies and made all sorts of proposals to enrich the green environment with small interventions and to improve the relationship between the user and the environment. Making small differences in height was an important way to create conditions that would benefit the biodiversity of flora and fauna.
From 1970 to 1972, Váhl worked at the municipality of Delft. As a member of Tanthof working group, he was directly involved in drafting the alternative plan for the new Tanthof district, and again mixing traffic types instead of separating them was an important issue. After 1972 he worked for the municipalities of Gouda, Lelystad and Culemborg.
In 1989 Willem Jan Neutelings (1959) was commissioned by the municipality of The Hague to study the urbanisation process of the southern section of the so-called Randstad conurbation in the west of the Netherlands, in particular the area between The Hague and Rotterdam.
The Rotterdam office Van den Broek and Bakema made the first design for the Tanthof residential area south of Delft in 1969. The plan provided a core of high-rise slabs along and over a major trunk road towards Rotterdam, with the low-rise neighbourhoods around it.
Gonggrijp graduated in 1969 on a landscape study of the western Netherlands. His design research focused on the ongoing expansion of the port of Rotterdam. For this research he created a series of hand-drawn maps with overlaid transparent sheets.
Urban designer Frits Palmboom (1951) made his name in 1987 with the book Rotterdam, verstedelijkt landschap (Rotterdam, Urbanised Landscape), a completely new interpretation of the urban morphology of Rotterdam.
The New Netherlands
In 1987 the exhibition 'Nieuw Nederland' (The New Netherlands) took place on the initiative of the foundation Nederland Nu Als Ontwerp (The Netherlands Now As Design). With a view to the future urbanisation of the Netherlands, four scenarios were developed for the spatial development of the Netherlands up to the year 2050.