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#1 User is offline   Romulus 

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Posted 25 October 2007 - 20:12

Deoarece se propune marirea limitelor si deoarece sunt tot mai multe radare fixe si mobile, va propun sa cititi:

The 85th percentile speed

Va dau doar un citat pentru moment:

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Plenty of research has shown that the safest group of vehicles are travelling at or below the 85th to 90th percentiles. Research shows that crash risk alters with speed and this is shown by the red crash risk curve. At the 85th to 90th percentiles we tend to find drivers with above average skill and competence, and this is why their crash risk is the lowest. Above the 90th percentile we tend to find drivers exceeding safe limits and their accident risk increases as a consequence. Note that the "average" driver at the 50% percentile has a greater crash risk than the 85th percentile driver. Below the 30th percentile crash risk is significantly increased and these speeds tend to be used by less skilled and competent drivers.


Ca sa intelegeti totul, cititi pe acolo si exprimati-va parerea aici.

#2 User is offline   cos 

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Posted 26 October 2007 - 15:21

Interesant. Si destul de logic...
Numai ca acolo se vorbeste despre 2 lucruri diferite, in ceea ce priveste riscul de accidente datorita neadaptarii vitezei la conditiile impuse de drum:
* prima data se spune ca odata cu cresterea vitezei peste 85 percentile, creste si riscul de accidente...
* a doua oara se spune despre scaderea vitezei sub 30 percentile, care duce tot la cresterea riscului...
Primul e un risc controlabil (teoretic ar trebui sa imi cunosc limitele, si sa nu intru in nici un copac/masina), pe cand al doilea e necontrolabil (cu siguranta nu intru in nici un copac/masina, pt ca merg incet, dar n-am ce face daca ma loveste altul din spate)....In fond tot accidente sunt, dar de naturi diferite...

Nu stiu daca e vreo masura in sensul asta, dar cum sunt radarele si camerele fixe ce urmaresc viteza maxima, ar trebui sa se urmareasca si viteza <30%, pt ca si asta duce la risc mare de accidente.
Nu prea se pune accent pe asta, sau nu stiu eu destule?

Quote

Nu cred ca rata accidentelor va creste. Pe drumurile care sunt bine lucrate, poti circula cu aceste viteze


Spusele Noricai Nicolai nu par prea documentate, si cu atat mai mult nu par a fi concluzia vreunui studiu stiintific.

De obicei respect limitele de viteza, dar asta nu inseamna ca nu merg cu 70 prin unele localitati, acolo unde e drum intins, vizibilitate, case la oarecare departare de drum, etc.
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