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Ministry of Transport.
12-1-7. SPECIAL VFR (SVFR)
NOTEPilots
do not have to be IFR qualified to fly SVFR at night,
nor does the aircraft have to be equipped for IFR flight.
a. Within a control zone where there is an airport
controller on duty, approve or refuse a pilot's request
for SVFR on the basis of current or anticipated IFR
traffic only. If approved, specify the period of time
during which SVFR flight is permitted.
b. Within a control zone where there is no airport
controller on duty, authorize or refuse an aircraft's
request for SVFR on the basis of:
1. Current or anticipated IFR traffic, and
2. Official ceiling and visibility reports.
c. Canadian SVFR weather minimums for:
1. Aircraft other than helicopters. Flight visibility
(ground visibility when reported) 1 mile.
2. Helicopters. Flight visibility (ground visibility
when available) 1/2 mile.
2/14/08 JO 7110.65S
User Request Evaluation Tool (URET) - En Route 13-1-1
Chapter 13. Decision Support Tools
Section 1. User Request Evaluation Tool
(URET) - En Route
13-1-1. DESCRIPTION
URET is an en route decision support tool that is used
by the sector team in performing its strategic planning
responsibilities. URET uses flight plan data, forecast
winds, aircraft performance characteristics, and track
data to derive expected aircraft trajectories, and to
predict conflicts between aircraft and between
aircraft and special use or designated airspace. It also
provides trial planning and enhanced flight data
management capabilities.
13-1-2. CONFLICT DETECTION AND
RESOLUTION
a. Actively scan URET information for predicted
aircraft-to-aircraft and aircraft-to-airspace alerts.
b. When a URET alert is displayed, evaluate the
alert and take appropriate action as early as practical,
in accordance with duty priorities.
c. Prioritize the evaluation and resolution of
URET alerts to ensure the safe, expeditious, and
efficient flow of air traffic.
NOTEURET
alerts are based on radar separation standards.
Caution should be used when situations include
nonstandard formations.
d. When a URET alert is displayed and when
sector priorities permit, give consideration to the
following in determining a solution:
1. Solutions that involve direct routing, altitude
changes, removal of a flight direction constraint
(i.e.,inappropriate altitude for direction of flight),
and/or removal of a static restriction for one or more
pertinent aircraft.
2. Impact on surrounding sector traffic and
complexity levels, flight efficiencies, and user
preferences.
e. When the URET Stop Probe feature is activated
for an aircraft, Conflict Probe for that aircraft shall be
restarted before transfer of control, unless otherwise
coordinated.
NOTEThe
requirement in subpara 13-1-2e does not apply to
aircraft entering airspace of a non-URET facility.
13-1-3. TRIAL PLANNING
a. When URET is operational at the sector and
when sector priorities permit, use the trial plan
capability to evaluate:
1. Solutions to predicted conflicts.
2. The feasibility of granting user requests.
3. The feasibility of removing a flight direction
constraint (i.e., inappropriate altitude for direction of
flight) for an aircraft.
4. The feasibility of removing a static restriction
for an aircraft.
13-1-4. URET-BASED CLEARANCES
When the results of a trial plan based upon a user
request indicate the absence of alerts, every effort
should be made to grant the user request, unless the
change is likely to adversely affect operations at
another sector.
13-1-5. THE AIRCRAFT LIST (ACL),
DEPARTURE LIST (DL) AND FLIGHT DATA
MANAGEMENT
a. The ACL shall be used as the sector team's
primary source of flight data.
b. Actively scan URET to identify automated
notifications that require sector team action.
c. When an ACL or DL entry has a Remarks
indication, the Remarks field of the flight plan shall
be reviewed. Changes to the Remarks field shall also
be reviewed.
d. Highlighting an entry on the ACL or DL shall
be used to indicate the flight requires an action or
special attention.
JO 7110.65S 2/14/08
13-1-2 User Request Evaluation Tool (URET) - En Route
e. The Special Posting Area (SPA) should be used
to group aircraft that have special significance
(e.g.,aircraft to be sequenced, air refueling missions,
formations).
f. When URET is operational, sector teams shall
post flight progress strips for any nonradar flights.
g. When URET is operational, a flight progress
　
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