VISSIM 5.30-05 User Manual

6 The Traffic Network
Example 3 - Step 4
12 t = 3.7 s
x = 0 m
v = 180 km/h
rot = Lkw/Bus
red = HGV/Bus
10 t = 0 s
x = 5 m
v = 180 km/h
12
grün = Lkw/Bus
green = HGV/Bus
10
11 t = 3.6 s
x = 0 m
v = 180 km/h
rot = Lkw/Bus
red = HGV/Bus
Querverkehrsstörungen
für einen zweistreifigen Kreisverkehr
mit zweistreifiger Zufahrt
Priority rules
for a two-lane roundabout
with a two-lane entry
Spur 1
(lane 1)
Spur 2
(lane 2)
270 VISSIM 5.30-05 © PTV AG 2011
11
6-12
Legende (legend)
t: Zeitlücke
(min. gap time)
x: Weglücke
(min. headway)
v: max. Geschwindigkeit
(max. speed)
gestörter Querschnitt
(stop line)
störender Querschnitt
(conflict marker)
Finally, the priority rules for lane 2 dealing with specific vehicle classes need
to be entered. Same as with lane 1, long vehicles need to be secured (No.
10 - added to the same stop line as Nos.6-9) and entering HGVs and buses
to be provided with higher gap times (Nos. 11 and 12 - added to a new stop
line). Same as with lane 1 there is a slightly higher value for the time gap of
the inner roundabout lane.
6.6.2 Conflict Areas
Conflict areas are a new alternative to priority rules to define priority in
intersections.
They are the recommended solution in most cases because they can be
modelled more easily and the resulting vehicle behavior is more intelligent.
6.6.2.1 Principles
A conflict area can be defined wherever two links/connectors in the VISSIM
network overlap. For each conflict area, the user can select which of the
conflicting links has right of way (if any).