CESAR Climate and Environmental change and Sustainable Accessibility of the Randstad DBR February 2012 Prof. Martin Dijst Faculty of Geosciences Utrecht University
CESARClimate and Environmental change and Sustainable Accessibility of the
Randstad
DBR February 2012
Prof. Martin Dijst
Faculty of Geosciences
Utrecht University
CESAR in a nutshell
Challenge 1
Challenge 2
Progress challenge 1
• Systematic and comprehensive review of literature
• Incomplete and fragmented
Progress challenge 1
continued
• Overall: increased attractivensess of cycling and decrease of the car
• Winter(milder and wetter): growth in use of cycling and walking
• Summer (hotter, dryer and extreme precipitation): more car and less use of active modes
• Sholder seasons: contrasting results
Progress challenge 1
continued
• What is more important for urban heat island effect?:
• Long wave trapping• Short wave shadow effects
• Based on collected data in Rotterdam and Weather Research and Forecast model (WRF)
• Effects depend on season:• Winter: only long wave trapping
due to lack of incoming solar radation
• Summer: both processes
Progress challenge 2
• Developing and testing multidimensional framework
• Aims of PSS• Improving planning process• Improving outcomes
• Experimental tests of Urban Strategy (US)
• Preliminary results• In its current form US contributes
little to the quality of the process and outcomes
• Scale and level of detail not well tuned to the demands of land use and transport strategy makers
• Kind of indicators not well-suited for kind of questions
Policy relevance
• Impact of microclimate on local environmental quality
• Impact of microclimate on sustainable transport modes
• Impacts on sustainable accessibility• Integration of microclimate effects in
PSS
Prospects challenge 1
• Fieldwork to analyse interaction weather conditions, individual experiences and mobility
• Modelling morphology of cities and urban climate
Prospects challenge 2
• Experimental testing specific strategies to improve quality of processes and outcomes of PSS
• Analysis of meaning of PSS at various spatial scales and for exchange of knowledge between various type of actors