| activeSpeedControlInOperation |                             EnumerationLiteral
 |                     0 |                                 Automatic speed control measures are in place at the specified location, whereby speed limits are set by an automatic system which is triggered by traffic sensing equipment. |         
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                            | doNotSlowdownUnnecessarily |                             EnumerationLiteral
 |                     1 |                                 Do not slow down unnecessarily. |         
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                            | observeSpeedLimit |                             EnumerationLiteral
 |                     2 |                                 Observe speed limit. |         
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                            | policeSpeedChecksInOperation |                             EnumerationLiteral
 |                     3 |                                 Police speed checks are in operation. |         
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                            | reduceYourSpeed |                             EnumerationLiteral
 |                     4 |                                 Reduce your speed. |         
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                            | speedRestrictionInOperation |                             EnumerationLiteral
 |                     5 |                                 A speed restriction is in operation. |         
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                            | other |                             EnumerationLiteral
 |                     6 |                                 Other than as defined in this enumeration. |         
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