Watermanagement in Urban Areas
(CT5510)Design
3a. Design, Getting started
- Presentation slides (41 slides / 1,9 MB / pdf)
This presentation is the start of the second part of this course on water management in urban areas dealing with the design phase. In order to create a civil engineering design of an urban area from scratch, two basic components are needed: Objectives and design loads.
The objectives are based on an ambition or vision which gives a qualitative expression of them. This vision is put into quantitative standards and requirements which can be combined with the design loads to form the elements in the design phase. The design loads are retrieved from the underlying processes and their probability distribution. - Collegerama video part 1 (30 min. streaming video)
How to startSustainability - Collegerama video part 2 (50 min. streaming video)
VulnerabilityRisk managementStandards - Collegerama video part 3 (50 min. streaming video)
Standards (continued)Design loads - Collegerama video part 4 (6 min. streaming video)
Design loads (continued).
3b. Design, Building site preparation
- Presentation slides (41 slides / 2,1 MB / pdf)
A former presentation in the series on improved building site preparation (in Dutch: beter bouw- en woonrijp maken) which shows a step by step procedure to prepare an area for urban development. It consecutively deals with the outline of surface water, water quality and groundwater aspects in the course of building site preparation. - Collegerama video part 1 (16 min. streaming video)
The urban water assignment Separate urban water from it surroundings Determine drainage options - Collegerama video part 2 (41 min. streaming video)
Determine drainage options (continued) Determining levels Determine storage What to consider storage - Collegerama video part 3 (48 min. streaming video)
Determine storage (elaborated) Reduce damage when exceeding standards Hydraulic discharge capacity Water quality - Collegerama video part 4 (36 min. streaming video)
Groundwater control Drainage levels Type of drainage system Layout of the drainage system Type of drainage tubes.
3c. Design, Soil & Elaboration
- Presentation slides (33 slides / 1,7 MB / pdf)
Lecture on soil management: Manipulating the characteristics of the ground to support for instance the accessibility of an area. These characteristics are however largely dependent on the building site preparation or filling method. So various methods are discussed and it is explained how to select one.
Because it becomes clear that several aspects of building site preparation are very much entangled with the water management aspects of the previous lectures, an elaboration on some steps of the water assignment is presented. - Collegerama video part 1 (33 min. streaming video)
IntroductionAccessibility and bearing capacityPermeabilityConsolidationFilling methodsSelection of a filling method - Collegerama video part 2 (55 min. streaming video)
Elaborating on the water assignment - Collegerama video part 3 (26 min. streaming video)
Elaborating on the water assignment (continued).
3d. Design, Computation methods
- Presentation slides (16 slides / 0,2 MB / pdf)
Lecture on rainfall-runoff relations. Because it is impossible to handle all processes which influence the runoff of precipitation, simplified models are used in design and operation of urban water management systems. These models use different computation methods to convert precipitation into net precipitation (loss models) and net precipitation into design runoff (transformation models). - Collegerama video part 1 (11 min. streaming video)
Precipitation to runoffStructure of the modelLoss models - Collegerama video part 2 (43 min. streaming video)
Runoff (revisited)Structure of the model (revisited)Loss models (revisited)Transformation models
3e - Design, SUDS
- Presentation slides (52 slides / 6,0 MB / pdf)
Lecture on an innovative approach on urban drainage systems. After developing a basic approach to design a traditional urban drainage system, it can be taken one step further. The current system has some drawbacks which could be improved. Surplus of runoff discharge (sewer overflow) and lack of local infiltration (limited groundwater recharge) are examples which could be avoided with a wide scale of techniques often called best management practices (BMP), low impact development (LID) or sustainable urban drainage systems (SUDS). - Collegerama video part 1 (80 min. streaming video)
IntroductionDelaying methodsApplicabilityRainwater as a resource - Collegerama video part 2 (52 min. streaming video)
Mathematical designDesign graphs.
