A local initiative is taking off to inform the debate around traffic management and policy in Crystal Palace. Volunteers are installing a number of stand-alone traffic counters using Raspberry Pi devices running Telraam software. This is an open source traffic-counting system that has been developed by a team in Belgium specifically to promote citizen science-led traffic policy.
Eventually the intent is to combine these traffic counters into a network.
The complete kit is cheap to buy (<£80) and relatively simple to build and install. If you are interested in hosting one, here’s what you need.
The correct location
- You live somewhere with a street-facing window
- This window has a completely unobstructed view onto the street and pavement – no poles, trees, or structures which block the view in any way
- This window is on an upstairs floor (not on the ground floor)
- There is no screen in front of this window that would obstruct the view from the Telraam
- Shutters/blinds for this window can only be used during the hours of darkness
- You have a wifi connection to which the Telraam device can be connected
- You have a power outlet close to the window
This is all you need. The suggested suppliers (RS & PiHut) is not an endorsement; merely so you can find the right modules’ though we have found them to be reliable and fast.
|Raspberry Pi 3 A+||£23.82|
|Raspberry pi case 1||£5.66||KKSB Case 2||£17.00|
|Camera with 15cm cable||£24.12|
|16GB micro SD card w/ adapter||£8.21|
|Longer camera cable (30cm) 3||£2.50|
|Total materials cost||£76.33|
1 Note this case does not have a slot for the camera cable so will have to be cut then taped to close
2 Includes an exit slot in the side of the case to allow a ribbon cable to be fitted
3 A longer camera cable helps with installation
- a roll of double-sided foam mounting tape to stick the Telraam to a window
- black electrical tape to cover the camera cable
Building & setting up
- putting the kit together (10 minutes)
- downloading the software and installing onto SD card
- registering and setting up the network
- Assembling Telraam yourself
- Fix and install your Telraam
- Notes on the camera placement
- Assembly video (in Flemish, but good visuals)
- Setup video (in English)
A team is being set up to help build and install these systems, though of course due to Covid-19, the last step of installation will have to be self completed. Leave a message on the Contact form (include your address) if you need help.