وحدة المرور بتراجع المخالفة.

It means the traffic unit or the traffic department/office.

In real-life Egyptian usage, وحدة المرور usually refers to the government office that handles vehicle registration, licenses, traffic violations, and related paperwork. So it is not just a literal unit in an abstract sense; it often means an actual administrative office.

Because this is an iḍāfa construction, often called a possessive or noun-of-noun structure.

In وحدة المرور:

• وحدة = unit
• المرور = traffic

Together, they mean the unit of traffic or more naturally the traffic unit.

In Arabic, the first noun in an iḍāfa usually does not take ال. The definiteness comes from the second noun. Since المرور is definite, the whole phrase is definite.

So:

• وحدة مرور = a traffic unit
• وحدة المرور = the traffic unit

Because the subject is وحدة, and وحدة is a feminine singular noun.

Arabic verbs agree with the subject in gender and number. So even though المرور is masculine, the whole subject phrase is headed by وحدة, not المرور.

That is why the verb is:

• بتراجع = she/it reviews

Here, it refers to the unit, and unit is grammatically feminine in Arabic.

In Egyptian Arabic, the prefix بـ on the imperfect verb usually marks the present tense.

So بتراجع can mean:

• reviews
• is reviewing
• does review

The exact English translation depends on context.

This بـ is a very common Egyptian feature. It is one of the things that makes the sentence sound colloquial/Egyptian rather than fully Modern Standard Arabic.

It can mean either one.

In Egyptian Arabic, the same present-tense form often covers both:

• simple present: reviews
• present progressive: is reviewing

So وحدة المرور بتراجع المخالفة could mean:

• The traffic unit reviews the violation
• The traffic unit is reviewing the violation

Context tells you which one sounds more natural in English.

Literally, المخالفة means the violation.

But in traffic-related contexts, it often means something like:

• the traffic violation
• the ticket
• the fine
• the citation

So even if the literal meaning is violation, the practical meaning in everyday use may be closer to ticket or traffic fine, depending on the situation.

Because the sentence is talking about a specific violation or ticket, not just any violation in general.

So:

• مخالفة = a violation / a ticket
• المخالفة = the violation / the ticket

In context, this usually suggests that both speaker and listener already know which violation is being discussed.

A rough pronunciation is:

waḥdet el-morūr bitrāgiʿ el-mokhālafa

A few pronunciation notes:

• ح in وحدة is a strong breathy h
• ج in Egyptian is usually pronounced like g in go, so بتراجع sounds like bitrāgiʿ
• خ in مخالفة is like the ch in Scottish loch or German Bach
• ال is often pronounced el in Egyptian speech

It is best understood as Egyptian Arabic.

The clearest clue is بتراجع:

• In Egyptian Arabic, the present tense often uses بـ
• In Modern Standard Arabic, you would normally have تراجع rather than بتراجع

So the vocabulary is compatible with formal Arabic, but the verb form makes the sentence sound Egyptian/colloquial.

Because Arabic verbs already contain subject information.

بتراجع tells you that the subject is:

• third person
• feminine
• singular

So Arabic does not need a separate word for it here. The verb itself already signals that.

That is why the sentence can simply say:

وحدة المرور بتراجع المخالفة

without adding another word for it.

Because Arabic does not usually use a separate present-tense to be in sentences like this.

The verb بتراجع already carries the meaning of present-time action. So Arabic does not need an extra word corresponding to English is.

In other words:

• English: is reviewing
• Egyptian Arabic: بتراجع

The Arabic verb does the whole job by itself.

Yes. In Egyptian Arabic, subject + verb + object is very common, which is what you have here:

وحدة المرور بتراجع المخالفة

But Arabic can also allow other word orders in some contexts, especially for emphasis or style.

This sentence is very natural as it stands, and for a learner it is a good basic pattern to remember:

• subject
• present-tense verb
• object

It is related in root idea, but here it does not mean the number one.

Here, وحدة means unit. It is a noun used in expressions like:

• وحدة سكنية = housing unit
• وحدة صحية = health unit
• وحدة المرور = traffic unit

So in this sentence, think of وحدة as unit/department/office, not as a number.