Wavetronix SmartSensor Advance Extended Range (SS-200E) - Use Instrukcja Użytkownika Pobierz pdf (Strona 76)

CHAPTER 7  CHANNELS-ALERTS-ZONES 75

Channel 1

Level 1

Level 2

Queue

Clearance

Figure 7.5 – Priority Channel Zones

e rst two zones work in tandem to allow you to provide dierent levels of dilemma zone

protection based upon the discovery range of each vehicle. Vehicles discovered upstream

of the discovery range threshold are classied as level one priority and are given the high-

est level of protection. Vehicles discovered downstream of the discovery range threshold

are classied as level two priority and are given a reduced but adequate level of protection.

Note

Priority channels are only available with SmartSensor Advance Extended Range. The

extended range of the sensor is best matched to:

• Distinguish between large vehicles (trucks and buses) and small vehicles (pas-

senger cars).

• Provide dilemma zone protection for large vehicles. Trucks have been shown to

have dilemma zones a far back as 7.5 seconds. For example, an ETA of 7.5 sec-

onds at 65 mph is equivalent to 715 ft. (217.9 m). This is beyond the range of

SmartSensor Advance, but not SmartSensor Advance Extended Range.

By default the discovery range threshold is set at 750 feet. If necessary, adjust the discovery

range threshold so that most large vehicles are discovered beyond this threshold and most

small vehicles are discovered aer it.

1 2 ... 71 72 73 74 75 76 77 78 79 80 81 ... 147 148

Brak uwag

Wavetronix SmartSensor Advance Extended Range (SS-200E) - Use Instrukcja Użytkownika Strona 76