Driver Fitness

main purpose of this is that you have mastered the following sections:

Reflections driver (Concepts of reaction time, reaction distance ..., etc.).

BAC (Concepts , taxes and alcohol tests ).

Our reflexes ( responsiveness ):

En the issue of documentation was said that one of the qualifications needed in order to obtain a driver's license , was to demonstrate to the authorities that we had physical ability, and psychomotor psychophysics for driving motor vehicles , by medical certificate ( not psycho ). The Approved Centre , where the issue , we do some simple tests whose purpose is to determine primarily whether the prospective driver has sufficient reflexes ( reaction time) .

POngame is a simple example to study the following concepts:





Example: Imagine that we circulate to our tourism, an avenue , and through us , past a soccer ball.

Reaction time:

It is the time elapsed since we perceive the ball, so we put the foot on the brake .

Reaction Distance:

Is that crosses our vehicle during the reaction time, ie since we see the ball until we put the foot on the brake.

Stopping distance:

It's covered by your vehicle , we started to slow down, until it stops.

Stopping distance or technical stop:

It's covered by your vehicle , from which we perceive the ball, until we were completely stopped.









Data to be taken into account with respect to reaction time :

The reaction time ( reflections) of a normal person is between half a second and a second.

At the time of reaction is unaffected by vehicle speed, as our reflexes are the same walk that at 180 km / h (another thing is the distance of reaction) .

The state of the driver (alcohol , fatigue , drowsiness ...), causes increased reaction time ( it takes longer to react).

All it does increase our response time ( does take longer to react) , by contrast , leads to poor our responsiveness.





Facts to consider about the distance of reaction:



At the distance of reaction it will affect the speed of the vehicle (the higher the speed , the greater the distance of a vehicle in the driver's reaction time ... or not?)

If the state of the driver (alcohol , fatigue , drowsiness ...), adds to the reaction time also will increase the distance of reaction ... Right?





Data to be taken into account concerning the stopping distance :



The stopping distance ( remember, we started to slow down, until the vehicle is stopped) , increases to poor road conditions (rain , leaves, potholes ...), the poor condition of the tires (pressure , drawing , ...), cuts of shock absorbers, braking elements ( pads or shoes ).

The state of the driver (alcohol , fatigue , drowsiness ...), but you will not believe , does not affect the braking distance , for at that moment who is involved but not the driver brakes.

As to whether we did on dry pavement stopping distance would double if circulásemos on wet pavement and up to ten times higher if we did by pavement with ice or snow.





Facts to consider regarding the stopping distance or technical stop :



This distance is always greater than the stopping distance and, because it is the sum of the reaction distance plus braking affected by all factors that affect these .







The drink-driving :





BAC is the amount of alcohol present in the body.

BAC is either the number of grams of alcohol per liter are analyzed blood , or the number of milligrams of alcohol per liter are expired air.

* Con this definition we have given, we conclude that there are two ways to get the BAC on a person ...:



By blood tests (measured in g.)

Using a breathalyzer analyzing the expired air (measured in milligrams.)

Breath test :

* LAgents conducted a traffic charge .

* Estan required to perform the breathalyzer test ..:

Any user (Pedestrian , cyclist , driver ...) that has engaged in an accident.

About lead Symptoms of a vehicle to do so under the influence of alcohol .

The drivers they have been denounced for violations of traffic regulations.

The drivers that are required for this purpose in the breath tests .