Logo
Italian Road Signs and Traffic Sign Meanings

Understand the 'Road Subject to Flooding' Additional Panel (IT-AP-21)

IT-AP-21 - Road subject to flooding Italian road sign meaning

This additional panel, labelled IT-AP-21, is used in Italy to modify the scope of the main traffic sign it accompanies. It's crucial to read this panel in conjunction with the primary sign, as it specifies details like distance, length, time, vehicle category, exceptions, road conditions, or direction. Ignoring this panel can lead to misinterpreting the main sign's applicability, so always consider the complete sign assembly before adjusting your driving behaviour.

Understanding the "Road Subject to Flooding" Sign

This supplementary panel modifies primary road signs, crucial for understanding specific conditions like potential flooding. Mastering its interpretation is vital for your Italian theory test revision and ensuring correct responses to traffic sign explanations.

Definition of IT-AP-21

This additional panel is not normally interpreted alone. It changes the scope of the main sign by showing distance, length, time, vehicle category, exception, road condition, direction, or where a rule starts, continues, or ends. Ignoring the panel can make the main sign too broad or too narrow, so the complete sign assembly should be read before deciding. Official catalogue code: IT-AP-21.

Meaning of IT-AP-21

The "Road subject to flooding" panel modifies the main sign by adding scope information such as distance, length, time, category, exception, condition, direction, or start/end point. Catalogue code IT-AP-21.

Allowed actions for IT-AP-21

Apply the panel together with the main sign it modifies.Use it to determine distance, length, time, direction, category, exception, condition, or validity.

Prohibited actions for IT-AP-21

Do not read the panel as a standalone rule.Do not ignore a panel that narrows, extends, starts, ends, or exempts the main sign.

IT-AP-21 - Road subject to flooding road sign FAQ

Get clear, practical answers to the most common questions about the IT-AP-21 - Road subject to flooding road sign. Learn how the sign works, what rules it represents, and how it affects real driving situations. This FAQ strengthens your understanding and supports accurate decision making for the Italian driving theory exam in Italy.

What is the purpose of the IT-AP-21 'Road Subject to Flooding' panel?

The IT-AP-21 panel serves as an auxiliary sign in Italy. Its main purpose is to provide additional context or limitation to the primary traffic sign it's mounted with. It doesn't create a rule on its own but clarifies the conditions, distance, duration, or specific applicability of the main sign.

How does the IT-AP-21 panel affect other road signs?

The IT-AP-21 panel modifies the reach of the main sign. For example, if a main sign indicates a speed limit, this panel might specify that the speed limit applies only for a certain distance, during specific times, or for certain types of vehicles. Always read the panel together with the main sign to understand the precise rule.

Can I ignore the IT-AP-21 panel if I don't think it applies to me?

No, you should never ignore the IT-AP-21 panel. It's designed to narrow down, extend, start, end, or exempt the main sign's rule. Failing to consider its details, such as distance or vehicle category, could lead to a misunderstanding of the applicable traffic law and potentially a fine or an exam error.

What kind of information can the IT-AP-21 panel provide?

The IT-AP-21 panel can convey various types of information. This includes the distance over which a rule applies, the length of a road segment, specific times of day or days of the week, the category of vehicles affected, exceptions to a rule, current road conditions, or the direction in which the main sign's instruction is valid.

Is the IT-AP-21 panel a warning sign by itself?

No, the IT-AP-21 panel is an additional panel, not a standalone warning sign. It acquires its meaning and function entirely from the main sign it accompanies. Therefore, it should always be interpreted as part of a complete traffic sign assembly.

IT-AP-21 - Road subject to flooding road sign image

A clear reference image of the IT-AP-21 - Road subject to flooding road sign used in Italy.

IT-AP-21 - Road subject to flooding road sign

Other names for the IT-AP-21 - Road subject to flooding

The IT-AP-21 - Road subject to flooding road sign may also be known by these alternative names or terms.

Road subject to floodingIT-AP-21 additional panelIT-AP-21 Italian additional paneladditional panels

Italian Additional Panels road sign category

The IT-AP-21 - Road subject to flooding road sign is part of the Italian Additional Panels category, which groups together signs with similar rules and functions.

Reinforce Your Knowledge with Similar Signs

Understanding variations between similar road signs is key to accurate theory test revision. Comparing signs like this one helps cement your learning and reduce errors during your exam preparation.

II.1-a - Distance (in metres) road sign

Distance (in metres)

Understanding the 'Distance (in metres)' Additional Panel (II.1-a)

Italian Additional PanelsII.1-a
II.1-b - Distance (in kilometres) road sign

Distance (in kilometres)

The II.1-b panel provides essential distance or scope context for other road signs.

Italian Additional PanelsII.1-b
II.2-a - Length of a danger or a prescription (in meters) road sign

Length of a danger or a prescription (in meters)

Understand the 'Length of Danger or Prescription' Panel (II.2-a)

Italian Additional PanelsII.2-a
II.2-b - Length of a danger or a prescription (in kilometres) road sign

Length of a danger or a prescription (in kilometres)

Understand the II.2-b Panel: Extending Danger or Prescription Distances

Italian Additional PanelsII.2-b
II.3-a - Timetable: the sign applies all day road sign

Timetable: the sign applies all day

Understand the II.3-a 'Applies All Day' Timetable Panel

Italian Additional PanelsII.3-a
II.3-b - Timetable: the sign between the hours shown road sign

Timetable: the sign between the hours shown

II.3-b Additional Panel: Understanding Time-Based Sign Meanings

Italian Additional PanelsII.3-b
II.3-c - Timetable: the sign between the hours shown but only in holidays (represented by the cross) road sign

Timetable: the sign between the hours shown but only in holidays (represented by the cross)

Understand the 'Timetable: Holidays' Supplementary Road Sign (II.3-c)

Italian Additional PanelsII.3-c
II.3-d - Timetable: the sign between the hours shown but only in working days (represented by the two hammers crossed) road sign

Timetable: the sign between the hours shown but only in working days (represented by the two hammers crossed)

This Timetable Sign Means Restrictions Apply Only on Working Days

Italian Additional PanelsII.3-d

Ready to Dive Deeper into Italian Road Sign Categories?

After reviewing the complete sign list, explore signs by specific categories such as warning, regulatory, or information signs. Understanding signs in context will enhance your recognition and interpretation skills, crucial for the Italian driving theory exam.

All Italian Road Signs List
CTA Decorative Squares

Dive into Italian road sign knowledge

Italian Driving Theory B courseItalian Driving Theory AM courseItalian Motorcycle Theory A courseII.6-b Road accident Italian road signItalian Goods Vehicle Theory (C) courseII.6-p1 Hairpin turn ahead Italian road signII.1-a Distance (in metres) Italian road signItalian Warning Signs Italian road sign categoryII.6-p2 Number of hairpin turn Italian road signItalian Priority Signs Italian road sign categoryII.1-b Distance (in kilometres) Italian road signItalian Mandatory Signs Italian road sign categoryItalian Temporary Signs Italian road sign categoryItalian Traffic Signals Italian road sign categoryII.6-l Slow-moving vehicle ahead Italian road signItalian Indication Signs Italian road sign categoryIT-AP-21 Road subject to flooding Italian road signItalian Additional Panels Italian road sign categoryItalian Prohibition Signs Italian road sign categoryIT-AP-20 Snow removal vehicle at work Italian road signItalian Complementary Signage Italian road sign categoryII.6-q2 Road cleaning during times shown Italian road signII.3-a Timetable: the sign applies all day Italian road signII.8-a No parking during road cleaning operations Italian road signII.3-b Timetable: the sign between the hours shown Italian road signII.5-a3 End of a danger or a prescription (vertical) Italian road signII.5-b3 End of a danger or a prescription (horizontal) Italian road signII.2-a Length of a danger or a prescription (in meters) Italian road signII.6-a No road markings or road markings work in progress Italian road signII.5-a1 Beginning of a danger or a prescription (vertical) Italian road signII.5-a2 Continual of a danger or a prescription (vertical) Italian road signII.2-b Length of a danger or a prescription (in kilometres) Italian road signII.5-b1 Beginning of a danger or a prescription (horizontal) Italian road signII.5-b2 Continual of a danger or a prescription (horizontal) Italian road signII.8-b Mandatory direction for vehicles carrying dangerous goods Italian road signII.4-b The sign doesn't apply to the category shown (in the example buses ) Italian road signII.4-a The sign applies only to the category shown (in the example semi-trailer trucks ) Italian road signII.3-c Timetable: the sign between the hours shown but only in holidays (represented by the cross) Italian road signII.3-d Timetable: the sign between the hours shown but only in working days (represented by the two hammers crossed) Italian road signIT-AP-19 Crossing of railway linking tracks: the trains move very slowly and usually with the presence of a flagger (this crossing is not considered a level crossing). Italian road sign