TOPOGRAPHY | MICROCLIMATE
CONTENTS
TOPOGRAPHY 2 | SHADOW STUDY 5 | WIND STUDY 13
TOPOGRAPHY
SLOPE
CLOROPLETH
CONTOUR
Height Above Sea Level (Metres)
Percentage Change in Slope 25% + 15-25% 8-15% 0-8%
DRAINAGE BASEMENT
FLOOD PLAIN
Low: 312.29
SHADOW
^ N
High: 348.471
SHADOW STUDY 15 STOREYS | 20 STOREYS | 25 STOREYS
^ N 12 PM
3 PM
DECEMBER 21 | WINTER SOLSTICE
9 AM
9 AM
12 PM
3 PM
SEPTEMBER 21 | FALL EQUINOX
^ N
9 AM
12 PM
3 PM
JUNE 21 | SUMMER SOLSCTICE
^ N
The shadow impact study illustrates the existing site conditions and potential impacts of high density developement through the placement of 15 (45 m), 20 (60 m) and 25 (75 m) storey buildings. The potential impacts are more apparent during the winter solstice at which time the shadows reach maximum extension. The present diagrams illustrate three adjacent building of heights ranging between 15 and 25 storeys. The diagram facilitates a study in which shadows are shown, at 60 minute incriments, on the day of September 21st between the times of 9:00 am and 4:00 pm. It is evident that a simple addition of five storeys in building height will produce a vast difference in shadow extension.
HOURLY TEMPERATURES ALL VISABLE THERMAL ZONES
Monday, September 10 (253) - Toronto, Ontario; Canada
NOTE: Values shown are environment temperatures, not air temperatures.
C 40
W/m2 1.9k
30
1.4k
20
1.0k
10
0.5k
0
0
1
2
Outside Temperature
3
4
5
Direct Solar
6
7
8
9
Diffuse Solar
10
11
12
13
Wind Speed
14
15
16
17
Zone Temperature
18
19
20
21
22
23
0.0k
WIND STUDY
The following wind analysis illustrates average temperature and wind frequency in directional wind roses that present the data in monthly increments spanning a calendar year. The adjacent legends illustrate seperate aspects of the analysis. The radial graph reprsents direction and speed, while the gradients represent average temperature and frequency of the wind. Finally, the wind roses are alligned in orrder of month beginning with January and transitions from June to July at the break between pages as illustrated below.
JAN
FEB
MAR
JUL
AUG
SEP
APR
MAY
JUN
OCT
NOV
DEC
AVERAGE TEMPERATURE
FREQUENCY
g Winds
Prevailing Winds
o - Canada y - 31st January :00
Toronto - Ontario - Canada Date: 1st February - 28th February Time: 00:00 - 24:00
Temperatures
Prevailing Winds
Average Wind Temperatures 50 km/h
© ECOTECT v5
Average Wind Temperatures °C 45+
50 km/h
Toronto - Ontario - Canada Date: 1st March - 31st March Time: 00:00 - 24:00 © ECOTECT v5
40 35
40 km/h
30 20 15
35 30 20
30 km/h
15
5 <0
10 km/h
g Winds
Temperatures
o - Canada 30th April :00
^ N
Toronto - Ontario - Canada Date: 1st May - 31st May Time: 00:00 - 24:00 © ECOTECT v5
45+
50 km/h
35 30
5 <0
10 km/h
20 15 5 <0
Toronto - Ontario - Canada Date: 1st June - 30th June Time: 00:00 - 24:00 © ECOTECT v5
°C 45+
50 km/h
35 30
30 km/h
20 15
10 km/h
5 <0
35 30 25
30 km/h
10 20 km/h
°C 45+ 40
40 km/h
25
10
10 km/h
15 10
20 km/h
40 40 km/h
25
20 km/h
20
Average Wind Temperatures °C 40
30 km/h
30
Prevailing Winds
Average Wind Temperatures
40 km/h
<0
10 km/h
Prevailing Winds 50 km/h
5
35 25
30 km/h
10 20 km/h
°C 45+ 40
40 km/h
25
10 20 km/h
50 km/h
40 40 km/h
25 30 km/h
°C 45+
20 15 10
20 km/h
10 km/h
5 <0
Prevailing Winds
Prevailing Winds
Average Wind Temperatures 50 km/h
Average Wind Temperatures
Toronto - Ontario - Canada Date: 1st August - 31st August °C Time: 00:00 - 24:00 © ECOTECT v5
40 km/h
50 km/h
45+
40 35
40 km/h
25
20
20
30 km/h
10
5
5
20 km/h
<0
o - Canada r - 31st October :00
Toronto - Ontario - Canada Date: 1st November - 30th November Time: 00:00 - 24:00 © ECOTECT v5
45+
50 km/h
40 35 30 25 20 15
30 km/h
10 km/h
5 <0
10 km/h
30 25 20 15 10 5
20 km/h
<0
10 km/h
^ N
Toronto - Ontario - Canada Date: 1st December - 31st December Time: 00:00 - 24:00 © ECOTECT v5
°C 45+
50 km/h
35 30 20 15 5 <0
°C 45+ 40
40 km/h
35 30 25
30 km/h
10 20 km/h
35
30 km/h
25
10 20 km/h
40
40 40 km/h
45+
40 km/h
Average Wind Temperatures °C
°C
50 km/h
Prevailing Winds
Average Wind Temperatures
30 km/h
<0
10 km/h
Prevailing Winds
40 km/h
15
10
g Winds
50 km/h
30
25
10 km/h
Temperatures
°C 45+
35
15
20 km/h
© ECOTECT v5
40 30
30 km/h
Toronto - Ontario - Canada Date: 1st September - 30th September Time: 00:00 - 24:00
20 15 10
20 km/h
10 km/h
5 <0
Winds
Prevailing Winds
Hrs)
anada 1st January
Winds
Hrs)
anada April
Prevailing Winds
Wind Frequency (Hrs) 50 km/h
Toronto - Ontario - Canada Date: 1st February - 28th February Time: 00:00 - 24:00 © ECOTECT v5
40 km/h
Wind Frequency (Hrs) hrs 37+
Toronto - Ontario - Canada Date: 1st March - 31st March Time: 00:00 - 24:00 © ECOTECT v5
21
29
19
40 km/h
16
22
14
18
12
14
30 km/h
9
11 7
20 km/h
<3
10 km/h
^ N
© ECOTECT v5
30+
50 km/h
24 20
13 10 8 6
20 km/h
4 <2
10 km/h
15 12 6 <3
Toronto - Ontario - Canada Date: 1st June - 30th June Time: 00:00 - 24:00 © ECOTECT v5
hrs 29+
50 km/h
23 20
30 km/h
14 11
10 km/h
5 <2
33 29 25
30 km/h
8 20 km/h
hrs 42+ 37
40 km/h
17
9
10 km/h
16 12
30 km/h
26 40 km/h
18
20 km/h
17 40 km/h
Wind Frequency (Hrs) hrs 26
30 km/h
<2
hrs 20+
Prevailing Winds
Wind Frequency (Hrs)
40 km/h
4
20 km/h
10 km/h
Toronto - Ontario - Canada Date: 1st May - 31st May Time: 00:00 - 24:00
50 km/h
7
Prevailing Winds 50 km/h
hrs 24+
33 25
30 km/h
50 km/h
21 16 12
20 km/h
10 km/h
8 <4
Winds
Prevailing Winds
anada July
Toronto - Ontario - Canada Date: 1st August - 31st August Time: 00:00 - 24:00
Hrs)
50 km/h
© ECOTECT v5
Wind Frequency (Hrs) hrs 32+
50 km/h
Toronto - Ontario - Canada Date: 1st September - 30th September Time: 00:00 - 24:00 © ECOTECT v5
28 25
40 km/h
22 16
30 km/h
12
20 km/h
29 25
7
20 km/h
Prevailing Winds
Toronto - Ontario - Canada Date: 1st November - 30th November Time: 00:00 - 24:00
Toronto - Ontario - Canada Date: 1st December - 31st December Time: 00:00 - 24:00
© ECOTECT v5
hrs
50 km/h
24 21 15 12
10 km/h
6 <3
22 19 16
8
10 km/h
5 <2
^ N
© ECOTECT v5
hrs 28+
50 km/h
22 19 14 11 5 <2
hrs 34+ 30
40 km/h
27 23 20
30 km/h
8 20 km/h
11
20 km/h
16 30 km/h
14
30 km/h
25 40 km/h
9 20 km/h
25 40 km/h
Wind Frequency (Hrs)
31+
28+
10 km/h
Prevailing Winds
18 30 km/h
<3
10 km/h
27 40 km/h
14 11
Wind Frequency (Hrs) 50 km/h
18
30 km/h
6 <3
hrs
50 km/h
22
9
10 km/h
Hrs)
hrs 37+ 33
40 km/h
19
Winds
anada 1st October
Prevailing Winds
Wind Frequency (Hrs)
17 13 10
20 km/h
10 km/h
6 <3
CHALLENGES
AN ARRAY OF SLOPE LIMITATIONS FOR ROADS HIGH DENSITY DEVELOPEMENT CASTS LARGE SHADOWS HIGH FREQUENCY WINDS DURING WINTER MONTHS HIGHER SPEED OF WIND FROM WEST
OPPORTUNITIES
SLOPE AND ELEVATION CAN BE USED TO OFFSET HIGH DENSITIES RELATIVELY LOW SOLAR STRESS OFFERS GREATER OUTDOOR USE INTENSIFICATION EFFORTS NECESSARY VARYING TEMPERATURES INDUCE DIVERSITY OF FLORA
ANALYSIS
The extremely low densities, found thorughout this site, offer an exceptional oppurtunity for intensitfication. However, this opportunity must be approached with caution as a result of the major challenges presented by wind and shadow impacts. Therefore it is the strong recommendation of this report that thourough shadow and wind analyses be conducted on all proposed devleopements. Furthermore, a concentration of wind frequency from the west should impact the placement and position of open spaces and intensified vehicular corridors. Although topographic elements may be used to offest shadow impacts of higher density developements, it is recommended, based on these shadow studies, that 20 and 25 storey buildings are excessively high in the context of the current conditions. Developement should also be considered based on the floodplain, and a further analysis should be conducted based on those constraints because of the inherent challenges that those conditions present.
HRYNKIEWICZ | TAYLOR