What is an ambulance?
An ambulance is
a vehicle for transportation of sick or injured people to, from or between places
of treatment for an illness or injury.
But imagine you call 911 and
tell the operator you are experiencing the signs of a heart attack -- chest
discomfort, shortness of breath and nausea. EMS employees arrive and help you
into an ambulance, bound for the best, nearest emergency department, you think,
until you overhear on the radio that it is closed to traffic.
Well that is horrifying!
What to do then?
Clear traffic using a wand! ......................................Bad idea.
Instead take some new preventive measures along with the earlier existing ones and this problem can be eradicated.Yes its possible!
How?
In this post i am going to suggest some ways that i believe can work out perfectly if given proper attention.
These mostly are the amalgamation of modern technology,kinematics,coordination and hope.The overview of the concept is to regulate the traffic in order to allow the ambulance to pass unhindered.
Assumptions made
- Distance between two signals = 500m
- Type of crossing = 4 lanes
- Speed of ambulance = 40 kmph
- Speed of other cars = 20 kmph
- Avg. length of cars and ambulance = 3m
- Avg. width of cars and the ambulance = 1.5m
- Distance between consecutive vehicles = 1m
- Width of road =14m
- Install proximity sensors in all vehicles(most 4 wheeler ) and on signals.
- Whose switch is to be provided inside the ambulance.
- In this case we have assumed road to be double laned and and crossing of lane "+" type.
- Ambulance must act as point source moving and activating LEDs of sensors in the cars.
Working
Whenever an ambulance will pass through a traffic signal ,the signal will be forwarded to other nearby signal(at 500m) and the crossing would be closed only allowing the road on which ambulance is travelling to pass through.
As soon as ambulance pass through the second signal it will get opened closing the the third signal in a similar way .Thus this process would be repeated accurately till the ambulance reaches the hospital.
You might be wondering by now what is the use of sensors in the cars?!Well it is because people should be made aware of ambulance's arrival.
So next question is "are sirens not enough"? Sirens are effective but it is possible its effect go unnoticed as in case of heavy drilling work going nearby or continuous honking by other vehicles.But when there would be LEDs lighting up inside the car ,the driver will definitely lay his/her attention towards it and change the lane.
This is because those LEDs wold meant only for ambulances!!
Next question on the trot would be what should be the minimum distance between the ambulance and last car sensing its arrival .Will all cars of the city will lighten up whenever any ambulance would pass??!!
Well again that sounds absurd! Keeping all the factors in mind (like distance between two cars , cars' length and width and speed) a car will take nearly 2.5 seconds to change over to other lane.
And keeping that duration of time in mind the last car coming inside the circle would be at a distance of nearly 40 meters
To make my statements sound i underwent some calculations which i will publish in my next post.
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