2. What is the Cause of Traffic
Congestion on Braemar Hill
in the Morning?
3. Location of the Problem
Map 1: The map above shows the location of this investigation, Braemar Hill.
4. Snapshots of the Problem
-Timeline of the traffic congestion on Braemar Hill from 7:15am to 7:50am on
September 1st 2010
7:15am 7:20am 7:25am 7:30am
7:35am 7:40am 7:45am 7:50am
5. Total Vehicle Distribution on Braemar Hill
Map 2: The map above shows the vehicle distribution on Braemar Hill during the investigation
6. Break
down
of
CIS's
vehicles
28
30
Cars
Taxis
300
School
Buses
8. What is the Scale of
Congestion on Braemar Hill
in terms of Spatial Context
and Time?
9. Scale of Congestion
• Scale of congestion
worsens as time
progresses
• The area of congested
road increases
10. Map 3: The map above shows the congested areas on Braemar Hill during the investigation
11. Map 4: The map above shows the data collection points during the investigation
12. 0:20:10
Total Traveling Time from 0m to CIS
0:17:17
Length of Travel time over 1100m
0:14:24
0:11:31
0:08:38
0:05:46
0:02:53
0:00:00
7:04:48 7:12:00 7:19:12 7:26:24 7:33:36 7:40:48 7:48:00 7:55:12 8:02:24
Car Arrival Time at 0m
13. Conclusion
ž During peak hours, the congestion spreads:
— ½ way down Cloud View road,
— ¾ the way down Tin Hau Temple road,
— 3/5 the way down Pak Fuk road.
ž Traveling
time is multiplied 13 times during
peak hours
14. How are We Affected by the
Traffic Congestion on
Braemar Hill?
15. Speed of Commute
- Route Recorded
Map 5: The map above shows the route of which the speed of commute was recorded.
17. Speed of Commute
No. of people interviewed = 33
Including students, drivers & teachers
18. Noise Levels
Noise Levels During Braemar Hill Rush Hour
85
80
75
Decibels (dB)
70
65
60
7:10 AM 7:25 AM 7:27 AM 7:30 AM 7:35 AM 7:40 AM 7:45 AM 7:50 AM 7:55 AM
Time
19. Noise Levels
Decibels
Expose level Common noise source
(dB)
100 Possible hearing loss Pneumatic drill; Tractor
Open top car ride on motorway; Food
90 -
blender
80 Very Noisy Alarm Clock
Upper limit for hearing
70 Vacuum Cleaner
conversation
60 - Conversation at 1 meter; singing birds
22. Conclusion
ž Health,the time taken to commute, and the
noise levels - significant threat
ž The increased commute time to enter and
exit Braemar Hill during the morning rush
hour is up to fourteen times what it could be
ž Irritation
caused by noises is clearly stated
by the residents
23. Final Conclusion
1. Cause – CIS Private Cars
2. Scale
1. Spatial Context
2. Travelling Time
3. Effects on community:
1. Speed of commute
2. Noise levels
3. Health impacts
