Extension

Extension flag:

vs | plus starts the green time measurement by default after the minimum green time 1. After that, the extension depends on the extension flag. The extension flag recognises three effect groups:

Static dimensioning: Dimensioning is cancelled after gaps.

The dimensioning is cancelled if there are gaps in the traffic, even if there is sufficient traffic again afterwards, i.e. the gaps are smaller again.

Two variants are possible:

The measurement only stops when all loops are no longer measuring. Swinging" between the individual loops (alternating measurement of the loops) is possible.
the dimensioning is cancelled loop by loop. This means that once a loop has been cancelled, it is no longer taken into account. This means that "rocking" between loops is no longer possible.

Dynamic dimensioning:"dynamic", temporary gaps are not taken into account.

A traffic stream can be dimensioned up to the maximum green time, even if there are gaps in the traffic in between and no hostile traffic stream can intervene.

Permanent dimensioning: "Duration" Software extension

The "Duration" extension flag generates a duration extension (like permanent occupancy of a loop) regardless of the traffic. This can also be set if no loops are available.

As of vs | plus version 8.0.0, the extension flag for minor streams without call has been added: Extension flag for minor streams without call.

Re-service flag:

When a traffic stream switches to green, vs | plus sets an internal marker. In the event of a second selection, this marker is used to decide whether the traffic stream in question may receive a repeated green light based on the repeat flag parameter. This internal marker is deleted depending on the end of cycle parameter.

If minor streams want to switch into a running stage, it should be prevented that a subsequent measurement delays the switching to the next stage. vs | plus provides a so-called residual green calculation for this purpose. The residual green calculation determines the expected green end of the current friendly traffic streams and only switches on a minor stream if the residual green fulfils the conditions of the repeat flag.

In a first step, the residual green calculation searches for the friendly traffic stream that will be green the longest. The already determined new main stream and their type of intervention are taken into account. In the second step, this residual green is compared with the condition according to the repetition fla. If the residual green is less than the required value, the secondary stream is not switched on.

The re-service flag can be set differently for both the main stream and the minor stream.

The effect of the re-service flag depends on the control principle:

In cyclical control, the re-service flag is used to control the repetition of the main streams and the green condition for minor streams.
With acyclical control, this is used to control the green condition for a minoe stream.

Red flag:

The default behaviour of vs | plus is such that only those traffic streams are switched to red that are switched off by conflicting traffic streams.

vs | plus principle: Traffic streams remain green until they are switched to red by conflicting traffic streams!

Now there are often traffic streams that have green, but are not influenced by the standard behaviour of vs | plus and thus keep the green. Red flag now makes it possible to specifically switch traffic streams to red. These traffic streams are also set to red if they are not already set to red according to the standard behaviour.

Red flag is divided into four parts (Red_flag_1 to Red_flag_4). The effect of the individual red detection parts can be logically combined:

(Red_flag_1 ODER Red_flag_2) UND (Red_flag_3 ODER Red_flag_4)

Display	Identifier	Values	Description
ExtF	Extension flag		vs \| plus starts the green time measurement by default after the minimum green time 1. After that, the extension depends on the extension identifier. The extension identifier knows three effect groups: Static dimensioning: Dimensioning is aborted after gaps. The design is interrupted when there are gaps in the traffic, even if sufficient traffic is subsequently available again, i.e., the gaps are smaller again. Two variants are possible: The measurement only stops when all loops no longer measure. A "swing" between the individual loops (alternate measurement of the loops) is possible. The design is canceled loop wise. This means that a loop that has not been dimensioned once is no longer taken into account. Thus, a "swing" between the loops is no longer possible. Dynamic dimensioning: "dynamic" Temporary gaps are disregarded. A traffic stream can be sized up to the maximum green time, even if gaps in traffic occur in between and no conflicting traffic stream can intervene. Permanent dimensioning: "Duration" software extension. The extension identifier "Duration" generates a duration extension independent of the traffic (like duration assignment of a loop). This can also be set if no loops are present. For secondary streams without registration, as of vs \| plus version 8.0.0, the extension identifier can be used to set the green time up to which a traffic stream can extend if it has received green as a secondary stream without registration. In previous versions, secondary flows without registration could extend their green if they had traffic and it was permitted by the signal frame plan.

		TSstat	Traffic stream wise static rating, standard behavior.
		TSstat at SFconf	Traffic stream wise static rating in the presence of conflicting frame signal.
		TSstat at ConfCall	Traffic stream wise static rating in the presence of conflicting frame signal and demand.
		DETstat	Loop wise static rating.
		DETstat at SFconf	Loop wise static rating in the presence of conflicting frame signal.
		DETstat at ConfCall	Loop wise static rating in the presence of conflicting frame signal and demand.
		dynamic	Temporary gaps are not taken into account.
		TSstat /Vgmin1	Traffic stream wise static rating, standard behavior. / Allowed as MiTS_without extend to gmin1.
		TSstat at SFconf /Vgmin1	Traffic stream wise static rating in the presence of conflicting frame signal. / Allowed as MiTS_without extend to gmin1.
		TSstat at ConfCall/Vgmin1	Traffic stream wise static rating in the presence of conflicting frame signal and demand. / Allowed as MiTS_without extend to gmin1.
		DETstat /Vgmin1	Loop wise static rating. / Allowed as MiTS_without extend to gmin1.
		DETstat at SFconf /Vgmin1	Loop wise static rating in the presence of conflicting frame signal. / Allowed as MiTS_without extend to gmin1.
		DETstat at ConfCall /Vgmin1	Loop wise static rating in the presence of conflicting frame signal and demand. / Allowed as MiTS_without extend to gmin1.
		dynamic /Vgmin1	Temporary gaps are not taken into account. / Allowed as MiTS_without extend to gmin1.
		TSstat /Vgmin2	Traffic stream wise static rating, standard behavior. / Allowed as MiTS_without extend to gmin2.
		TSstat at SFconf /Vgmin2	Traffic stream wise static rating in the presence of conflicting frame signal. / Allowed as MiTS_without extend to gmin2.
		TSstat at ConfCall/Vgmin2	Traffic stream wise static rating in the presence of conflicting frame signal and demand. / Allowed as MiTS_without extend to gmin2.
		DETstat /Vgmin2	Loop wise static rating. / Allowed as MiTS_without extend to gmin2.
		DETstat at SFconf /Vgmin2	Loop wise static rating in the presence of conflicting frame signal. / Allowed as MiTS_without extend to gmin2.
		DETstat at ConfCall /Vgmin2	Loop wise static rating in the presence of conflicting frame signal and demand. / Allowed as MiTS_without extend to gmin2.
		dynamic /Vgmin2	Temporary gaps are not taken into account. / Als NSohne verlängern bis gmin2 erlaubt.
		TSstat /Vgmax1	Traffic stream wise static rating, standard behavior. / Allowed as MiTS_without extend to gmax1.
		TSstat at SFconf /Vgmax1	Traffic stream wise static rating in the presence of conflicting frame signal. / Allowed as MiTS_without extend to gmax1.
		TSstat at ConfCall/Vgmax1	Traffic stream wise static rating in the presence of conflicting frame signal and demand. / Allowed as MiTS_without extend to gmax1.
		DETstat /Vgmax1	Loop wise static rating. / Allowed as MiTS_without extend to gmax1.
		DETstat at SFconf /Vgmax1	Loop wise static rating in the presence of conflicting frame signal. / Allowed as MiTS_without extend to gmax1.
		DETstat at ConfCall /Vgmax1	Loop wise static rating in the presence of conflicting frame signal and demand. / Allowed as MiTS_without extend to gmax1.
		dynamic /Vgmax1	Temporary gaps are not taken into account. / Allowed as MiTS_without extend to gmax1.
		TSstat /Vgmax2	Traffic stream wise static rating, standard behavior. / Allowed as MiTS_without extend to gmax2.
		TSstat at SFconf /Vgmax2	Traffic stream wise static rating in the presence of conflicting frame signal. / Allowed as MiTS_without extend to gmax2.
		TSstat at ConfCall/Vgmax2	Traffic stream wise static rating in the presence of conflicting frame signal and demand. / Allowed as MiTS_without extend to gmax2.
		DETstat /Vgmax2	Loop wise static rating. / Allowed as MiTS_without extend to gmax2.
		DETstat at SFconf /Vgmax2	Loop wise static rating in the presence of conflicting frame signal. / Allowed as MiTS_without extend to gmax2.
		DETstat at ConfCall /Vgmax2	Loop wise static rating in the presence of conflicting frame signal and demand. / Allowed as MiTS_without extend to gmax2.
		dynamic /Vgmax2	Temporary gaps are not taken into account. / Allowed as MiTS_without extend to gmax2.
		Duration	Permanent extension.
MaStrmReF	Major stream re-service flag		When a traffic stream turns green, vs \| plus sets an internal marker. This marker is used to decide whether the traffic stream in question may receive repeated green in the event of a second selection on the basis of the Repeat identifier parameter. This internal marker is deleted depending on the parameter End of circulation.

		always	Main traffic stream may repeat freely.
		MTS with min1	Main traffic stream may repeat with tg min1.
		MTS with min2	Main traffic stream may repeat with tg min2.
		MTS with max1	Main traffic stream may repeat with tg max1.
		MTS with max2	Main traffic stream may repeat with tg max2.
		without	Main traffic stream must NOT repeat.
MiStrmReF	Minor stream re-service flag		There is also a repeat identifier for the minor streams for each traffic stream. The switching on of minor streams without registration is controlled via an add-on.

		always	Minor stream is allowed to repeat freely.
		always tg rem > tg min1	Minor stream may switch on if with tg rem greater than or equal to tg min1.
		always tg rem > tg min2	Minor stream may switch on if with tg rem greater than or equal to tg min2.
		always tg rem > tg max1	Minor stream may switch on if with tg rem greater than or equal to tg max1.
		always tg rem > tg max2	Minor stream may switch on if with tg rem greater than or equal to tg max2.
		Re-service with tg min1	Minor stream may repeat if with tg rem greater than or equal to tg min1.
		Re-service with tg min2	Minor stream may repeat if with tg rem greater than or equal to tg min2.
		Re-service with tg max1	Minor stream may repeat if with tg rem greater than or equal to tg max1.
		Re-service with tg max2	Minor stream may repeat if with tg rem greater than or equal to tg max2.
		without	Minor stream must NOT repeat.
		always/no MiTS_without	Minor stream is allowed to repeat freely. / Cannot switch minor streams without request.
		always tg rem > tg min1/ no MiTS_without	Minor stream may switch on if with tg rem greater than or equal to tg min1. / Cannot switch minor streams without request.
		always tg rem > tg min2/ no MiTS_without	Minor stream may switch on if with tg rem greater than or equal to tg min2. / Cannot switch minor streams without request.
		always tg rem > tg max1/ no MiTS_without	Minor stream may switch on if with tg rem greater than or equal to tg max1. / Cannot switch minor streams without request.
		always tg rem > tg max2/ no MiTS_without	Minor stream may switch on if with tg rem greater than or equal to tg max2. / Cannot switch minor streams without request.
		Re-service with tg min1/ no MiTS_without	Minor stream may repeat if with tg rem greater than or equal to tg min1. / Cannot switch minor streams without request.
		Re-service with tg min2/ no MiTS_without	Minor stream may repeat if with tg rem greater than or equal to tg min2. / Cannot switch minor streams without request.
		Re-service with tg max1/ no MiTS_without	Minor stream may repeat if with tg rem greater than or equal to tg max1. / Cannot switch minor streams without request.
		Re-service with tg max2/ no MiTS_without	Minor stream may repeat if with tg rem greater than or equal to tg max2. / Cannot switch minor streams without request.
		without/no MiTS_without	Minor stream must NOT repeat. / Cannot switch minor streams without request.
Red_flag_x	Red flag		The default behavior of vs \| plus is that only those traffic streams are switched to red which are switched off by conflicting traffic streams. Now there are often traffic streams that have green but are not influenced by the default behavior of vs \| plus and thus keep the green. A red detection now gives the possibility to switch traffic streams specifically to red. These traffic streams are also set to red if they are not already set to red according to the standard behavior. The red indicator is divided into four parts (Kr 1 to Kr 4). The effect of the individual red detection parts can be combined logically.

		NoRedFlag	Default behavior: The traffic stream remains on green until it is switched to red by a conflicting traffic stream.
		NoExt	The traffic stream switches to red as soon as there is no more traffic. The frame signal is disregarded in the process.
		upToSFext	The traffic stream switches to red at the latest at the start of the frame for extension.
		upToSFend	The traffic stream switches to red at the latest at the end of the frame for extension.
		uptotgmin 1	The traffic stream switches to red after the minimum green time 1 (tg min1).
		uptotgmin 2	The traffic stream switches to red after the minimum green time 1 (tg min1).
		uptotgmax 1	The traffic stream switches to red after the Maximum green time 1 (tg max1).
		uptotgmax 2	The traffic stream switches to red after the Maximum green time 2 (tg max2).
		upToConflCall	The traffic stream turns red as soon as a conflicting one is requested.
		upToConflAppl	The traffic stream turns to red as soon as a conflicting one has been registered.
		upToConflFrame	The traffic stream switches to red as soon as a conflicting frame is pending. This happens regardless of whether the conflicting traffic stream has been requested or registered.

Parameter	from vs \| plus version	Comment
Extension flag MiTS_without	8.0.0	Setting the maximum green time for minor streams without request.
Extension flag Duration	6.2.5	The duration extension is no longer canceled at a tgmax2 time of "Duration".
Minor stream re-service flag	8.0.0	Minor traffic streams without call could be registered by any other traffic stream. As of vs \| plus version 8.0.0, it is possible to define whether a secondary flow without registration can register another secondary flow without registration.
Red flag upToConflAppl	8.0.0	Problem with minimum red time fixed: If the minimum red time is very large, it covers the registration frame. Now red detection checks upToConflAppl the minimum red time of the conflicting traffic stream.
Red flag upToConflFrame	8.0.0	Problem with minimum red time fixed: If the minimum red time is very large, it covers the registration frame. Red detection upToConflAppl now checks the minimum red time of the conflicting traffic stream. During the check of red detection upToConflFrame, it is additionally checked for a frame signal for extension, whether a conflicting application is present.