📁 Video: cut_off_accident.mp4
⏱️  Analysis Time: 55.25 seconds
Annotation:
    ### Driving Behavior Analysis – Dashcam Sequence

    #### **Traffic Signals, Signs, and Lane Markings**
    - **Road Type & Markings:** The sequence takes place on a multi-lane divided highway/arterial road. The ego-vehicle starts in the leftmost lane, adjacent to a solid yellow line (median/shoulder), then transitions into a lane marked with a left-turn arrow, indicating an upcoming dedicated left-turn lane at an intersection.
    - **Lane Markings:** 
    - Solid yellow line on the left (median/shoulder).
    - Dashed white lines between lanes.
    - Left-turn only arrow marking appears as the ego-vehicle approaches the intersection.
    - **Traffic Signals:** Overhead traffic lights are visible in the distance, indicating an upcoming signalized intersection. The lights are green throughout the sequence.
    - **Road Signs:** A blue highway/exit sign is visible on the right side of the road, indicating directions or exits.

    #### **Ego-Vehicle Position and Actions**
    - **Lane Position:** The ego-vehicle begins in the leftmost through lane, then transitions into the left-turn lane as indicated by the lane markings and arrow.
    - **Speed & Spacing:** The ego-vehicle maintains a moderate speed, consistent with surrounding traffic, and keeps a safe following distance from the black SUV directly ahead.
    - **Maneuver:** The ego-vehicle smoothly follows the curvature of the left-turn lane, preparing for a potential left turn at the intersection.

    #### **Traffic Participants: Types, Movements, and Interactions**
    - **Ahead:** 
    - Black SUV directly in front of the ego-vehicle, also transitioning into the left-turn lane.
    - Multiple vehicles in adjacent lanes, including sedans and SUVs, traveling straight or preparing for lane changes.
    - **Right Side:** 
    - A silver sedan in the adjacent lane overtakes the ego-vehicle on the right, maintaining its lane and speed.
    - A brown SUV in the far right lane is visible, traveling straight.
    - **Left Side:** 
    - No vehicles in the median or oncoming lanes, as this is a divided highway.
    - **Other Lanes:** 
    - Moderate traffic density in all lanes, with vehicles maintaining lane discipline and speed.
    - **No visible VRUs (pedestrians, cyclists, motorcyclists) in the sequence.**

    #### **Sequence of Events and Interactions**
    - The ego-vehicle and the black SUV ahead both transition from the leftmost through lane into the left-turn lane, following the lane markings and left-turn arrow.
    - The silver sedan in the adjacent lane overtakes the ego-vehicle on the right, but does not change lanes or encroach on the ego-vehicle’s path.
    - All vehicles maintain their respective lanes and speeds, with no abrupt maneuvers or unsafe proximity observed.

    #### **Analysis of Behaviors and Intentions**
    - **Following Distance:** The ego-vehicle maintains a safe following distance from the black SUV ahead, allowing for adequate reaction time.
    - **Lane Change:** The transition into the left-turn lane is executed smoothly, following the lane markings and without abrupt steering.
    - **Right-of-Way:** The ego-vehicle respects right-of-way rules, yielding to vehicles in adjacent lanes and not forcing entry.
    - **Turning Preparation:** The ego-vehicle’s movement into the left-turn lane indicates an intention to turn left at the upcoming intersection.

    #### **Unsafe Behaviors and Situations**
    - No near-collisions, sudden braking, or sharp turns are observed.
    - No traffic violations (e.g., running red lights, illegal lane changes, or speeding) are evident.
    - All vehicles appear to be driving attentively and within the expected norms for this road type.

    #### **Road Features and Environmental Context**
    - **Road Type:** Multi-lane divided arterial road with a dedicated left-turn lane at an intersection.
    - **Road Condition:** Dry pavement, clear lane markings, no visible debris or obstructions.
    - **Weather:** Overcast/cloudy, but visibility is clear and there are no adverse weather conditions.
    - **Time of Day:** Daytime, as indicated by natural light and visibility.

    ---

    **Summary:**  
    The ego-vehicle demonstrates safe and attentive driving behavior, smoothly transitioning into a left-turn lane in preparation for an intersection. All observed traffic participants maintain proper lane discipline and speed, with no unsafe maneuvers or violations. The road environment is typical for a suburban arterial, with clear markings and good visibility.
\n📊 Analysis Summary:
   • 5 scenes analyzed
   • 1 rule violations found
   • 5 accident risks identified
   • Safety Score: 8/10
\n🎯 Extracted Scenes:
   1. Ego vehicle is in the second lane from the left on a multi-lane road
   2. Ego vehicle maintains a consistent following distance behind another car
   3. Ego vehicle drives on a dry and well-conditioned road
   4. Ego vehicle is surrounded by other vehicles moving in the same direction
   5. Ego vehicle drives under overcast skies with clear visibility
\n🚨 Rule Violations:
   ❌ Ego vehicle is surrounded by other vehicles moving in the sa...
      → The ego vehicle is surrounded by other vehicles moving in the same direction, which may block its view and close its escape route, and the ego vehicle is probably in their blind spot.
\n⚠️  Accident Risks:
   🚨 Ego vehicle is in the second lane from the left on a multi-l...
      → A possible accident in this scenario is a near-collision or collision with a vehicle making a left turn across the ego vehicle's lane. Historical data shows that on multi-lane roads, left-turning vehicles sometimes misjudge the speed or distance of oncoming traffic, fail to yield, or execute abrupt maneuvers, leading to near-collisions. The ego vehicle, being in the second lane from the left, may encounter vehicles from the leftmost lane attempting to turn left, increasing the risk if those vehicles do not yield properly or if visibility is limited.
   🚨 Ego vehicle maintains a consistent following distance behind...
      → A possible accident is a rear-end collision. Historical data shows that maintaining a close following distance, especially in slow or congested traffic, increases the risk of the ego vehicle colliding with the car in front if it stops suddenly. The current scene, where the ego vehicle maintains a consistent following distance, suggests that as long as the distance is safe, the risk is reduced. However, if the following distance becomes insufficient, it can lead to reduced reaction time and a higher likelihood of a rear-end accident.
   🚨 Ego vehicle approaches traffic lights in the distance...
      → Possible accidents at intersections with traffic lights include collisions due to vehicles running red lights, misjudging the timing of the signal, or failing to yield when turning. Historical data shows that such scenarios often involve drivers or pedestrians not adhering to traffic signals, leading to potential side-impact or rear-end collisions. The current scene, where the ego vehicle approaches a traffic light, presents risks if other vehicles or pedestrians do not comply with the signal, or if there is confusion or distraction near the intersection.
   🚨 Ego vehicle drives on a dry and well-conditioned road...
      → Possible accidents include collisions due to improper merging by vehicles entering the highway or sudden lane changes by nearby trucks. These situations can lead to side-swipe or rear-end collisions, especially if merging vehicles do not yield or maintain safe distances, or if large vehicles make abrupt maneuvers. The dry and well-conditioned road reduces risk, but vigilance is still required in multi-lane highway environments with merging and lane-changing traffic.
   🚨 Ego vehicle is surrounded by other vehicles moving in the sa...
      → Possible accidents include rear-end collisions or side-swipe incidents. In a scenario where the ego vehicle is surrounded by other vehicles moving in the same direction, historical data shows that abrupt lane changes, merging without proper clearance, and following too closely can lead to accidents. These risks are heightened if any vehicle misjudges speed or distance, fails to check blind spots, or lacks proper lane discipline. The close proximity of vehicles increases the likelihood of inadequate response time, making collisions more probable if sudden braking or lane changes occur.
\n========================================
COMPLETE SAFETY ASSESSMENT
========================================
🏆 SAFETY SCORE: 8/10
⚠️  RISK LEVEL: MEDIUM
\n📝 OVERALL EVALUATION:
   The ego-vehicle demonstrates generally safe and attentive driving behavior in a complex multi-lane highway environment. The driver maintains a safe following distance, adheres to lane discipline, and shows no signs of aggressive or distracted driving. However, the vehicle's position—surrounded by other vehicles and with limited escape routes—introduces moderate risk, especially in the event of sudden maneuvers by nearby vehicles. No traffic rule violations were observed, but situational awareness and proactive defensive driving could be further improved.
\n✅ STRENGTHS (5):
   + Maintains a safe and consistent following distance behind the vehicle ahead.
   + Demonstrates good lane discipline by staying within lane markings and not making unnecessary lane changes.
   + No evidence of speeding, aggressive, or distracted driving.
   + Adapts to environmental conditions (dry road, clear visibility) appropriately.
   + Approaches intersections with apparent caution.
\n❌ WEAKNESSES (4):
   - Surrounded by vehicles in adjacent lanes, which limits escape routes and increases vulnerability to sudden lane changes or merging by others.
   - Potentially in the blind spots of other vehicles, especially larger SUVs, increasing the risk of side-swipe collisions.
   - Approaching a traffic light where the signal state is unclear, which could present risks if not approached with heightened caution.
   - Historical accident data suggests increased risk from left-turning vehicles or merging traffic, which requires proactive scanning and anticipation.
\n💡 IMPROVEMENT ADVICE (6):
   → Increase situational awareness by regularly checking mirrors and monitoring the positions and intentions of vehicles in adjacent lanes, especially when surrounded.
   → Whenever possible, adjust speed or lane position to avoid being boxed in by other vehicles and to maintain an open escape route.
   → Be especially vigilant when approaching intersections or traffic lights, anticipating potential red-light runners or vehicles making sudden turns.
   → Watch for vehicles in the leftmost lane that may attempt to turn left across your path, and be prepared to slow down or take evasive action if necessary.
   → Continue to maintain a safe following distance, and increase it further in heavy traffic or when visibility is reduced.
   → Consider using defensive driving techniques, such as anticipating the actions of others and leaving extra space around your vehicle.
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Examples completed! Check the output above for results.
🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉



📁 Video: left_turn_cut_off.mp4
⏱️  Analysis Time: 75.44 seconds
Annotation:
    ### **Driving Behavior Analysis – Dashcam Sequence (Land O Lakes, FL)**

    ---

    #### **Traffic Signals and Signs**

    - **Traffic Signals:**  
    - The sequence begins at a major intersection with multiple overhead traffic lights. The lights are green for the ego-vehicle’s direction at the start, then transition to yellow and red as the vehicle approaches and enters the left-turn lane.
    - The ego-vehicle proceeds through the intersection as the light turns yellow, and is in the process of turning left as the light turns red.

    - **Road Signs:**  
    - **Speed Limit:** A clearly visible speed limit sign (35 mph) is present as the vehicle enters the residential/local road after the turn.
    - **No Parking:** A “No Parking Any Street” sign is visible on the right after the turn.
    - **Lane Markings:**  
        - Solid white stop line at the intersection.
        - Dashed white lines for lane separation.
        - Left-turn lane is clearly marked with a dedicated arrow.
        - Crosswalk markings are present at the intersection.

    ---

    #### **Interactions and Intentions of Traffic Participants**

    - **Ego-Vehicle Position:**  
    - Starts in the leftmost through lane, then moves into the dedicated left-turn lane at the intersection.
    - Executes a left turn onto a local/residential road.

    - **Other Traffic Participants:**  
    - **Red SUV:** Directly ahead of the ego-vehicle, also in the left-turn lane, leading the turn.
    - **White SUV (Kia):** Initially in the adjacent lane to the left, then merges into the ego-vehicle’s lane during the left turn, ending up directly in front of the ego-vehicle after the turn.
    - **Black Sedan:** In the through lane to the right of the ego-vehicle, continues straight through the intersection.
    - **Other Vehicles:** Multiple vehicles visible in opposing and adjacent lanes, but no direct interaction with the ego-vehicle.

    - **Sequence of Events:**  
    1. Ego-vehicle and red SUV wait at the intersection in the left-turn lane.
    2. As the light turns yellow, both begin the left turn.
    3. The white SUV, initially in a different lane, merges into the left-turn lane during the turn, cutting in front of the ego-vehicle.
    4. After the turn, the white SUV is directly ahead of the ego-vehicle, followed by the red SUV.
    5. Ego-vehicle follows at a moderate distance as all vehicles proceed along the residential road.

    - **Analysis of Interactions:**  
    - **Following Distance:** The ego-vehicle maintains a safe following distance after the turn.
    - **Lane Changes/Merging:** The white SUV executes an abrupt and potentially unsafe merge into the left-turn lane during the turn, without clear signaling or yielding to the ego-vehicle.
    - **Right-of-Way:** The white SUV’s maneuver may violate right-of-way, as it merges into the path of the ego-vehicle during the turn.
    - **Turning:** The ego-vehicle and red SUV execute smooth left turns, adhering to lane markings.

    ---

    #### **Unsafe Behaviors and Situations**

    - **Abrupt Lane Change/Merge:**  
    - The white SUV’s sudden merge into the left-turn lane during the turn is a notable unsafe behavior, creating a near-conflict with the ego-vehicle. This could have resulted in a collision if the ego-vehicle had not adjusted speed or position.
    - The maneuver appears to be executed without proper signaling or sufficient gap.

    - **Traffic Signal Compliance:**  
    - The ego-vehicle and red SUV begin their left turn as the light turns yellow, completing the turn as the light turns red. This is a borderline case; while not a clear violation, it is close to running a red light.

    ---

    #### **Road Features and Environment**

    - **Road Type:**  
    - Major multi-lane arterial road at the intersection, transitioning to a two-lane residential/local road after the left turn.
    - **Road Features:**  
    - Multiple lanes, clear lane markings, dedicated left-turn lane, crosswalks, and stop lines.
    - After the turn, the road narrows to a single lane in each direction, with curbs and landscaping.
    - **Road Conditions:**  
    - Dry pavement, good surface quality.
    - **Environmental Context:**  
    - Weather: Clear, sunny conditions.
    - Time of Day: Late afternoon or early evening (long shadows, golden hour lighting).
    - Visibility: Excellent.

    ---

    ### **Summary of Key Events for Indexing**

    - **Intersection left-turn scenario with signal transition (green to yellow to red).**
    - **Abrupt and unsafe merge by a white SUV into the left-turn lane during the turn, creating a near-conflict with the ego-vehicle.**
    - **Ego-vehicle maintains safe following distance and completes the turn smoothly.**
    - **Transition from arterial to residential road, with clear speed limit and no parking signage.**
    - **No evidence of vulnerable road users (pedestrians, cyclists) or unusual circumstances (construction, debris, emergency vehicles) in this sequence.**

    ---

    **Indexing Tags:**  
    - Intersection, left turn, signal transition, unsafe merge, near-conflict, lane discipline, speed limit, residential road, clear weather, daytime.
\n📊 Analysis Summary:
   • 7 scenes analyzed
   • 0 rule violations found
   • 5 accident risks identified
   • Safety Score: 9/10
\n🎯 Extracted Scenes:
   1. Ego vehicle approaches intersection with red traffic light
   2. Ego vehicle slows down to stop at intersection
   3. Ego vehicle is in the leftmost lane of a multi-lane road
   4. Ego vehicle maintains steady speed while approaching intersection
   5. Ego vehicle stops at red light
   6. Ego vehicle drives on dry and clear road
   7. Ego vehicle operates during late afternoon or early evening with clear visibility and sunny weather
\n🚨 Rule Violations:
\n⚠️  Accident Risks:
   🚨 Ego vehicle approaches intersection with red traffic light...
      → A possible accident at an intersection with a red traffic light is a collision caused by a vehicle running the red light. Historical data shows that running a red light, often due to inattention or intentional disregard for the signal, has led to near-collisions and actual crashes, especially when other vehicles or pedestrians are present. The current scene, where the ego vehicle approaches a red light, presents this risk if the ego vehicle or another participant fails to stop as required.
   🚨 Ego vehicle slows down to stop at intersection...
      → A possible accident is a rear-end collision. Historical data shows that when the ego vehicle slows down or stops at an intersection, if a following vehicle is too close or not attentive, it may not have sufficient time to react, leading to a rear-end collision. The risk is heightened by insufficient following distance and sudden braking, both of which are common contributing factors in intersection-related accidents.
   🚨 Ego vehicle is in the leftmost lane of a multi-lane road...
      → A possible accident in this scene is a near-collision or collision with a vehicle making a left turn across the ego vehicle's lane. Historical data shows that on multi-lane roads, left-turning vehicles sometimes fail to yield to oncoming traffic, misjudge speed or distance, or are distracted, leading to near-collisions or actual crashes. Since the ego vehicle is in the leftmost lane, it is particularly exposed to such maneuvers at intersections or when other vehicles attempt abrupt left turns. The main contributing factors are failure to yield, poor judgment by the turning driver, and potential distraction.
   🚨 Ego vehicle follows a red SUV at a safe distance...
      → A possible accident in this scenario is a rear-end collision. Historical data shows that following another vehicle too closely, even at a 'safe' distance, can still result in a rear-end collision if the leading vehicle (in this case, the red SUV) stops suddenly. The main reason is that the ego vehicle may not have sufficient time or space to react and stop safely, especially if the definition of 'safe distance' is not strictly adhered to or if road conditions change unexpectedly.
   🚨 Ego vehicle drives during late afternoon or early evening wi...
      → Possible accidents include collisions or near-collisions caused by vehicles making left turns across the path of the ego vehicle or abrupt lane changes without signaling. The main contributing factors are sun glare during late afternoon or early evening, which can impair visibility, and driver errors such as failing to yield or not checking blind spots. These conditions increase the risk of misjudgment and unsafe maneuvers, leading to potential accidents in multi-lane urban roads with clear weather but significant sun glare.
\n========================================
COMPLETE SAFETY ASSESSMENT
========================================
🏆 SAFETY SCORE: 9/10
⚠️  RISK LEVEL: LOW
\n📝 OVERALL EVALUATION:
   The driving performance in this scenario demonstrates strong adherence to traffic rules and safe driving practices. The ego-vehicle approaches a red light with appropriate caution, maintains a steady speed, and keeps a safe following distance from the vehicle ahead. No traffic violations or unsafe behaviors were observed. The driver is attentive to the environment and other road users, and the vehicle is well-positioned within its lane. However, some inherent risks remain due to the nature of intersections, potential for rear-end collisions, and environmental factors such as possible sun glare during late afternoon driving.
\n✅ STRENGTHS (6):
   + Compliant with traffic signals (stopping for red light)
   + Maintains safe following distance from the vehicle ahead
   + Keeps steady speed and lane discipline
   + Demonstrates awareness of surrounding vehicles and maintains appropriate spacing
   + Adapts speed appropriately when approaching intersection
   + No observed traffic rule violations
\n❌ WEAKNESSES (3):
   - Potential exposure to rear-end collision risk when stopping at intersections, especially if following vehicles are inattentive or too close
   - Possible vulnerability to left-turning vehicles from opposing traffic, particularly in the leftmost lane at intersections
   - Environmental risk of sun glare in late afternoon, which can reduce visibility and reaction time
\n💡 IMPROVEMENT ADVICE (5):
   → Continue to monitor rearview mirrors when slowing or stopping at intersections to anticipate possible rear-end risks from inattentive drivers behind.
   → Increase following distance slightly when approaching intersections to allow more reaction time if the vehicle ahead stops suddenly.
   → Be especially vigilant for vehicles making left turns across your path at intersections, and be prepared to brake or take evasive action if necessary.
   → During late afternoon or early evening, use sun visors and polarized sunglasses to reduce the impact of sun glare, and increase following distance to compensate for reduced visibility.
   → Regularly check blind spots and signal intentions early, especially in multi-lane environments where lane changes and turns are common.
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Examples completed! Check the output above for results.
🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉