Sunday, November 30, 2008

Answering Monica/Rob's Group

cameras are observing the intersection (position doesn't matter)

like in this video http://de.youtube.com/watch?v=b88yD-02ANY
a software can track the position of cars and pedestrians.

with an infrared camera this also works at night:
http://de.youtube.com/watch?v=bQPUzPXKRuU

different temperatures let the system know wether it's a car or human

the software calculates the exact position of all road users and decides on a lighting scenario

Terminology

Hi,

I just started to sum up our last results and giving names to all our three light solutions. With those terms it will be easier to make clear argumentation all refeering to the same names.

greetz





Saturday, November 29, 2008

Monica/Rob's Group

Hi Lauren,

As we are approaching the end I think it is important that we clarify
the interaction between our two projects. I remember your group
having a "pedestrian finder" sensor for the pedestrians. How does
this work? Were you planning to embed existing structures with this
technology? Is it supposed to be in the signal?
-What types of symbols are you using, if any at all?

And anything else you can think of that would interact with our signal
lighting. If you can't explain in email then me you and Rob can talk
about it at school this week before Friday.

-Hope your break was good

Monday, November 24, 2008

Skype Conclusions

We concluded that zebra stripes are not in every intersection in Europe and therefore is more of a device that gives the pedestrian a permanent-right-of-way where ever they are placed.  Therefore, after discussion, we think they should only appear when the Pedestrian is crossing on a green light, and are triggered by the pedestrian.  No pedestrian, no crosswalk.

The zebra stripes will function as a sudden visual warning to the driver as they will appear only the moment a pedestrian is about to cross.

We decided to keep the tracking sensors from about 100-150ft of the intersection.

There are some ethical issues with our current Phase 3 solution of red zebra stripes facilitating the pedestrian across. We are thinking of ways that will prevent the pedestrian from crossing the street when it is no his right of way.


For this Sundays meeting, proposals of :

1.  how the Phase 1 works, ie. sensor placement, how fast they blink...
2. Phase 3 solutions that discourage the pedestrian from crossing when it is not his/her right
3. Phase 2 details of how the overhead lights are fixed.  Directional lights, spotlights, lights that follow pedestrians... etc.

Next Skype Meeting

Sunday Nov 30 at 4:00 pm (22:00)

Scenario of Phase Three



Sunday, November 23, 2008

School Zone LED/Pedestrian Safety/Disappearing


School Zone is a concept crosswalk designed specifically for school zones but has amazing potential for other uses. The system changes several key elements to existing crosswalks promising safety for both pedestrians and drivers.

School Zone comes in a series of elevated slabs to fit any length road. The raised level ensures drivers see children as they cross and also acts as a speed bump forcing them to slow down or risk damaging their vehicles. The elevation also has an added benefit since it meets the exact height of the curb - wheelchairs can cross with ease.

Each slab has a set of illuminated LEDs that work in tandem to direct foot traffic. They time themselves to pre-existing crosswalk signals and turn off one by one indicating time is running out. The system can also run independently if no crosswalk exists.

The prefabricated nature of the system means it can be manufactured to the highest of standards and installed anywhere. You can take it a step further and create temporary crosswalks for special events like concerts and outdoor festivals.

Designer: Seungkyun Woo