
Design Feedback
Dan Eifert
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You need to be sure the control can't be hacked. If someone gets control of this they can cause accidents not prevent them. Who are you giving access to anyway? Access will be giving to only authorized individuals, like security.
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Power will need to be robust. I don't think you are planning to track the sun so the efficiency will be low at extreme sun angles. Up north they have many days with little to no light. How long can the system last under these conditions? For the most accurate answer this will come from testing in those conditions.
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I understand the narrow beam LIDAR can be trouble but isn't there something between 0 degrees and 360 degrees? Your refresh rate will be significantly degraded. The 360 degree LIDAR was chosen because it was the only non-narrow beam LIDAR available within budget.
Chris Smith
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The first red flag that I noticed about this design is that the LIDAR has a detection distance up to 8M which will not be enough to implement full scale speed and distance measurements for vehicles. The project is designed to be a proof of concept and not full scale.
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Also, a 360 degree scan outside WILL point the LIDAR receiver at the sun in the morning and/or evening. Perhaps this project needs to be reduced to a 1/4 scale design indoor proof of concept. The project has transitioned to object recognition cameras in place of LIDAR to address these concerns.
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Second, I heard mention of a police officer manually controlling the stop signs to allow one traffic direction to flow more freely and reduce congestion but this seems like it would generate confusion. How would a driver know to ignore the stop sign and obey the LEDs? The officer in this case will not be giving hand signals. The officer will remain to the side giving commands to the application. All visual cues will be shown via the Smart Stop Sign.
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Also, how will drivers know what instruction the LEDs are indicating? The LEDs will use common light signals that used for stop and go.
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Is it your intention to re-educate all drivers on the road? Our intention is not to re-educate but to create a simpler experience at a very busy traffic intersection.
Katherine McGrane
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Possible integration of optimal traffic pattern in terms of timing?
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Is it faster to let 1 car go at a time or multiple? This depends on how congested the intersection is. If the intersection is heavily congested we will have the app grant a user control to allow easier flow.
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Can this reduce traffic compared to regular light and how can you prove this? Good candidate for simulation. Proving this would be difficult in a real world application as there are too many factors that come into play, a simulation may help to demonstrate the project effectiveness.
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Could you adapt this to a 6-way intersection like where Denning, Orange, and Minnesota meet? Potentially this idea can be adapted for a 6-way but will need more research to know if will be as efficient.