Estimated delay in timetables

[ue71603]

In some timetables with already know that there will be a probable delay (e.g. due to construction). We would prefer not to change the arrival and departure time (Arrival/Time and Departure/Time). We were thinking about using CheckConstraints also for that.

However, it seems we don't a CheckProcess or CheckService that reflects that.

<Call id="ch:1:Call:ch:1:ServiceJourney:33-15365-1-1_1_2" version="any" order="2">
    <ScheduledStopPointRef ref="ch:1:ScheduledStopPoint:8504416:3" version="any"/>
    <Arrival>
        <Time>17:30:00</Time>
        <ForAlighting>true</ForAlighting>
        <IsFlexible>false</IsFlexible>
        <CheckConstraint id="ch:1:CheckConstraint:2" version="any" order="1">
            <delays id="ch:1:delays:1">
                <CheckConstraintDelay id="ch:1:CheckConstraintDelay:1" version="any" order="1">
                    <alternativeTexts>
                        <AlternativeText attributeName="Name">
                            <Text lang="it">Ritardo stimato</Text>
                        </AlternativeText>
                        <AlternativeText attributeName="Name">
                            <Text lang="en">Estimated delay</Text>
                        </AlternativeText>
                        <AlternativeText attributeName="Name">
                            <Text lang="fr">Retard prévu</Text>
                        </AlternativeText>
                    </alternativeTexts>
                    <Name>Voraussichtliche Verspätung</Name>
                    <MinimumLikelyDelay>PT4M</MinimumLikelyDelay>
                </CheckConstraintDelay>
            </delays>
        </CheckConstraint>
    </Arrival>

We could use CheckProcess=none or other.

Questions:

1. Is this something to be stored in CheckConstraints
2. If yes, how to model the CheckProcess? New value?