Some of the most important instructions on the road aren't on signs — they're painted right under your tires.
Lane-Use Arrows
White arrows painted on the road tell you what movements are allowed from that lane. A straight arrow means the lane is for going straight only. A turn arrow means the lane is for turning only. A combined arrow (straight + turn) means you may do either. You must follow these arrows — if you're in a right-turn-only lane, you must turn right.
Stop Lines and Crosswalks
A thick white line across the road is a stop line — stop behind it, not on it or past it. Crosswalks are marked by two parallel white lines or a series of white bars (zebra crossing). Always stop before the crosswalk. If a pedestrian is in the crosswalk, you must yield — even if there is no traffic signal.
Railroad Crossing Markings
A large white X with the letters RR painted on the road warns you that a railroad crossing is ahead. You may also see advance warning lines (diagonal white lines approaching the tracks). When you see these markings, slow down, look both ways, and listen for trains. If lights are flashing or gates are down, you must stop.
Other Special Markings
White diamonds painted in a lane mean it's a reserved lane — usually for HOV (high-occupancy vehicles) or buses. Shared-lane markings (a bicycle with two chevrons above it, called "sharrows") tell you that bicyclists share the lane with cars. Yellow diagonal lines or cross-hatching mark areas where you may not drive or park. The word SCHOOL painted on the road warns of a school zone.
Real World Examples
💡 You're in the left lane at an intersection and see a left-turn arrow painted on the road. You wanted to go straight, but you're now in a turn-only lane. You must turn left — trying to go straight from a turn lane is dangerous and illegal.
💡 You approach a railroad crossing with RR markings on the road. The gates start coming down. You must stop and wait — never try to beat the train.
Common Mistakes
⚠ Stopping on or past the stop line — you must stop behind it to keep the crosswalk clear for pedestrians.
⚠ Ignoring lane-use arrows and going straight from a turn-only lane.
Key Takeaways
✔ Lane arrows are mandatory — follow the direction they show.
✔ Stop behind the stop line, not on it.
✔ RR markings warn of railroad tracks ahead.
✔ White diamond lanes are reserved (HOV or bus).
Vocabulary
lane-use arrow
لين يوز أرو
سهم استخدام الحارة — سهم أبيض على الطريق يبين اتجاهك الإلزامي من هالحارة
layn yoos AIR-oh
stop line
ستوب لاين
خط الوقف — خط أبيض سميك عبر الطريق وين لازم توقف
stop lyne
crosswalk
كروسووك
معبر مشاة — منطقة محددة وين المشاة يعبرون الطريق
KROSS-wok
HOV lane
إتش أو في لين
حارة HOV — محجوزة لسيارات فيها 2 أو أكثر
aych-oh-vee layn
sharrow
شارو
علامة حارة مشتركة — تبين إن الدراجات تشارك الطريق مع السيارات
SHAIR-oh
Test Your Knowledge
Question 1
If you are in a lane with a right-turn arrow painted on the road, you must:
Question 2
When you see RR and a large X painted on the road, it means:
Question 3
Where should you stop your car at an intersection with a stop line?