Slide 1
Slide 1 text
Storage, maintenance & dissemination
of massive 3D city models
3D4EM Meeting
Jan 24, 2018
Kavisha
TU Delft
1
Slide 2
Slide 2 text
Problem?
2
Massive terrain models (TINs)
~ 700GB in CityGML
Slide 3
Slide 3 text
1.ADE for Terrains
3
1. CityGML_iTINs_ADE : CityGML ADE for massive terrains
2. iTINGML : GML with new geometry types
https://github.com/tudelft3d/CityGML_iTINs_ADE
Slide 4
Slide 4 text
4
Slide 5
Slide 5 text
5
Transactions in GIS
(December 2017)
Slide 6
Slide 6 text
UML iTINGML
6
Slide 7
Slide 7 text
UML CityGML_iTINs_ADE
7
Slide 8
Slide 8 text
UML iTIN_Relief
8
Slide 9
Slide 9 text
UML iTINGML
9
Slide 10
Slide 10 text
UML iTINGML
10
Slide 11
Slide 11 text
Testing
iStars < iTS < iTriStrips
11
Slide 12
Slide 12 text
2. ADE in Database
12
1. To register the ADE in the database
2. To store the terrains in the database
ADE : CityGML_iTINs_ADE
Database : 3D City Database
Slide 13
Slide 13 text
ADE in 3DCityDB
13
CityGML ADE
1
2
3
4
5
Slide 14
Slide 14 text
iTINRelief in Database
14
1. Register the ADE
2. iTINRelief: ADE class for DTM
(i) Simple terrain withTriangle
(ii)Terrain with vertical triangles
(iii)Terrain with Break lines
(iv)Constrained Terrain
Slide 15
Slide 15 text
3. Modelling urban noise in 3D
15
1. Automate the process of data creation for noise simulation
2. Storage and representation of the results of noise
simulation (CityGML): eNoise ADE
Standardize the 3D input and output data for noise simulation
Slide 16
Slide 16 text
16
3DGeoinfo 2017
Slide 17
Slide 17 text
Noise standards in NL
17
1. Industrielawaai IL (Industrial Noise)
2. Wegverkeerslawaai RMW 2012 (Road Traffic Noise)
3. Railverkeerslawaai RMR 2012 (Rail Traffic Noise)
Slide 18
Slide 18 text
18
IL
Slide 19
Slide 19 text
19
RMW-2012
Slide 20
Slide 20 text
CityGML eNoise ADE
20
1. Road traffic and railways noise
2. No support for industrial noise
3. No info about noise barriers
4. No distinction in the speeds of vehicles
5. No noise data for wide frequency range.
Slide 21
Slide 21 text
CityGML eNoise ADE
21
Slide 22
Slide 22 text
eNoise ADE
22
Buildings
• reflection values (octave band)
• receiver height (1..6)
• receiving facade
• noise levels (D/E/N)(octave band)
Noise Barriers
Industrial sources
Roads
Slide 23
Slide 23 text
eNoise ADE
23
Slide 24
Slide 24 text
4. Modelling floods in 3D
24
Mode : Online (edX)
Duration: 6 weeks
Slide 25
Slide 25 text
3Di: Requirements for input generation
25
2D/2.5D:
- Raster terrain Layer
- Raster soil layer (PAWN soil types)
- AHN
- BAG buildings footprints + threshold height
- Land use
- Roads, viaducts, tunnels (+ combined with levels)
Slide 26
Slide 26 text
3Di: Requirements for input generation
26
1D:
- Sewer system (via the municipality)
- Waterways and works of art (via the water board)
- Land use (NWRW walk-in) (+ roof slope, + type of paving)
After processing, result:
- Buildings (+ WOZ value, + number of inhabitants, +
number of floors)
- Roads (height, + link crossing to junction?)
Slide 27
Slide 27 text
3Di: Requirements for input generation
27
Soil/Surface type ??
BGT
Slide 28
Slide 28 text
Proposed Solution
28
1. Automatic creation of data as required by 3Di
(i) Extending 3Dfier
(iii) Data sources:
(a) AHN
(b) BGT
(c) BAG
2. Creation of unified database for this data
(i) Postgres/Postgis database
(ii) Procedure to import/export the data
Slide 29
Slide 29 text
Sewer system: Rotterdam
29
Slide 30
Slide 30 text
30
Task/Status Done Ongoing To Do
1. CityGML iTINs ADE ✓
2. iTINRelief in Database ✓
3. Full ADE in Database ✓
4. 3D data creation For Noise ✓
5. eNoise ADE Proposal ✓
6. Full UML of eNoise ADE ✓
7. 3D flood modelling ✓