In September 2025, Xuchang traffic police partnered with Baidu Intelligent Cloud to deploy a SaaS traffic control system, addressing challenges with three key advantages:

• No roadside hardware required, using Baidu Maps floating vehicle data for real-time perception
• AI-powered global control algorithms dynamically optimize traffic signals
• Implementation completed in under two weeks at one-tenth of traditional costs

Powered by the “Famou” intelligent agent, the system delivered measurable results by October 22:

• Intersection delays in pilot zones dropped by 13.39%
• Key corridors Tianbao Road and Xinxing Road saw 28.08% lower vehicle delays
• Rush hour travel speeds improved by 13-15%
• Residents reported trips now taking 3.5 minutes versus 5 minutes previously.

The solution extends to smart parking—Baidu Maps integrates real-time data from 20 parking lots, recommending available spaces and optimal routes to reduce circling.

From adaptive signals to guided parking, this integrated approach is making “continuous green lights” the new reality in Xuchang, showcasing how technology can build warmer, more efficient cities.

Source:7ITSNEWS

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1. The Erosion of Driving Agency: From “Road Royalty” to “System Passengers”

Driving once symbolized control and independence. Now, trust shifts from human skill to algorithmic black boxes. When systems override decisions in extreme scenarios, they risk not only accidents but also public trust. Will manual driving become a niche ritual, like horseback riding? The industry must redefine “experience” beyond performance metrics.

Industry Insights:

Implement graded warning and takeover mechanisms, with clear protocols for risk levels.

Integrate Driver Monitoring Systems (DMS) with contextual awareness to enable situational collaboration.

Standardize Human-Machine Interface (HMI) designs to reduce cognitive load.

2. The End of Road Privacy: From “Anonymous Travel” to “Digital Panopticon”

Smart infrastructure creates a “digital twin” of every traveler, capturing behaviors, routes, and even emotions. While valuable for optimization, this data risks exploitation—e.g., dynamic insurance pricing or targeted ads. Anonymity, once a default, now requires active protection.

Industry Insights:

Build decoupled, interoperable digital infrastructure with standardized data protocols.

Adopt a “Three Rights” framework (ownership, processing, usage) to govern data flow and value distribution.

Deploy privacy-enhancing technologies like edge computing and federated learning to minimize raw data exposure.

Establish self-regulatory conventions for ethical data use.

3. Reimagining Mobility Sociality: From “Random Encounters” to “Algorithmic Matching”

Highways once fostered spontaneous interactions—a nod between truckers, chats at rest stops. Now, V2V communication prioritizes efficiency over emotion. Algorithmic matching may create “travel bubbles,” reducing exposure to diverse perspectives and weakening community bonds.

Industry Insights:

Transform rest areas into digital social hubs using AR to connect travelers with shared interests.

Develop V2X-based “virtual co-pilot” networks for professional drivers to combat isolation.

Design location-based AR travel games to turn journeys into exploratory experiences.

Conclusion: Toward a “Human-Centric Digital Road”

Our mission extends beyond technical KPIs. Engineers must empathize, planners balance efficiency with poetry, and regulators nurture innovation alongside ethics. The ultimate goal is not just smarter roads, but journeys that enrich human dignity, connection, and possibility

Source:7ITSNEWS

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01. Pedestrian Zones

Since 2000, the Transport Department has implemented pedestrian environment improvement schemes in areas like Causeway Bay, Central, and Mong Kok. These include:

• Full-time Pedestrian Streets: Priority for pedestrians; only emergency/service vehicles allowed.
• Part-time Pedestrian Streets: Vehicle access restricted to specific hours.
• Leisurely Streets: Widened footpaths, minimal parking, and traffic calming measures.

These schemes aim to improve safety, promote walking, discourage non-essential traffic, and enhance the overall pedestrian environment, carefully considering local pedestrian flow, land use, and traffic impact.

02. Central-Mid-Levels Escalator

The system, operational since 1993, comprises covered walkways, 16 escalators, and 3 travelators. It serves approximately 99,000 daily users (2024 data). Downward operation runs from 6:00 AM to 10:00 AM, and upward from 10:00 AM to midnight.

03. Pedestrian Crossing Facilities

Electronic Audible Traffic Signals (EATS): Provide audible cues and vibrating units for the visually impaired, with automatic volume adjustment. New generations since 2025 feature LED lights, tactile maps, voice prompts, contactless buttons, and flexible volume control.

Intelligent Green Man Extension: Elderly (aged 65+ with JoyYou Card/Elder Octopus) and persons with disabilities can tap their card to extend the flashing green time at designated crossings.

Safety Auxiliary Devices: Red light projection systems are installed at crossings to alert distracted pedestrians, enhancing safety.

04. “Hong Kong Good • Easy Walk” Initiative

This strategy aims to build a “Walkable City” through four objectives: “Accessible,” “Safe,” “Comfortable & Pleasant,” and “Seamless & Well-connected.” Key measures include:

• Pedestrian Wayfinding Systems: Clear, coherent signage piloted in central districts.
• Removing Unnecessary Signs/Railings: Frees up space; over 290 signs and 3.5km of railings were removed in pilot areas.
• Pedestrian Crossing Platforms: Raised, colored platforms to slow vehicles and aid crossing.
• Footway-level Vehicle Access: Improves accessibility at driveway crossings.
• Low-speed Zones: 30 km/h limits implemented near schools and residential areas.
• Covered Walkways: Adding shelters to key footpaths connecting transport hubs and hospitals.

A Pedestrian Planning Framework incorporating “Link & Place” concepts guides the design and prioritization of these improvements based on street function.

The Transport Department continues to identify suitable locations for these measures, collaborating with districts and updating guidelines based on practical experience.

Content excerpted from: Transport Department, HKSAR Government

Source:ITS7NEWS

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I. Definition and Core Mechanism of the Reverse Variable Left-Turn Lane

The reverse variable left-turn lane refers to a special lane set on the inner side of the exit approach at an intersection, whose function switches dynamically with signal phases: during the left-turn phase, it serves as a left-turn lane, allowing vehicles to “borrow” the opposing lane to wait for left turns; during the through phase, it reverts to its function as an exit lane. This design applies the principle of time-space reuse, converting idle exit lane space into temporary storage for left-turning vehicles, thereby improving overall intersection efficiency.

Its core advantages include:

Efficient use of time-space resources: Dynamic lane function switching maximizes the utilization of intersection space.

Flexibility to adapt to traffic flow: Lane allocation can be adjusted based on real-time traffic demands, alleviating imbalances between left-turn and through traffic.

Low-cost modification: Requires only minor adjustments such as markings, signals, and guidance facilities, without large-scale construction.

II. Application Scenarios and Conditions

The reverse variable left-turn lane is suitable for the following scenarios:

Prominent conflict between left-turn demand and space: Intersections with high left-turn volumes and secondary queuing, where road width limitations prevent additional left-turn lanes.

High through traffic volume: Through lanes are already at capacity, and no space can be reallocated for left turns.

Irreconcilable time-space resource conflicts: Limited intersection space with high opposing through traffic, requiring refined organization to balance left-turn and through movements dynamically.

Its implementation requires the following conditions:

The approach already has a dedicated left-turn lane and an independent left-turn signal phase.

The intersection exit has ≥2 lanes to ensure lane function switching does not affect other traffic flows.

Sufficient internal intersection space to meet the minimum turning radius for left-turning vehicles.

No other options are available for adding left-turn lanes.

III. Technical Implementation and Optimization Strategies

The implementation of the reverse variable left-turn lane requires coordinated efforts in hardware modifications and signal control:

Hardware Modifications

Add an opening on the inner side of the exit lane, using colored markings to define the lane range. The length should be scientifically determined based on the left-turn phase green ratio and vehicle queue length.

Install complementary guidance displays and signals to indicate lane status in real time (e.g., “Left-Turn Borrowing,” “No Entry”).

Optimize the opening position to allow early U-turns, reducing U-turn vehicle interference with left-turn lanes, or implement U-turn restrictions based on actual traffic conditions.

Signal Control Optimization

Adjust the signal phase sequence to “left-turn first, then through,” ensuring left-turning vehicles can queue in the variable lane during the preceding through phase and pass quickly once the left-turn phase begins.

Install dedicated signals for the variable lane, synchronized with main signals to avoid conflicts.

Dynamically adjust phase timing based on variable lane length and vehicle passage efficiency to ensure efficient queuing and clearing.

IV. Practical Cases and Promotion Results

In May 2012, Jinan traffic police first proposed the concept of the “reverse variable left-turn lane” and implemented it at the east entrance of the Jingshi Huanshan intersection, marking the first such lane in China. The model has since been promoted to over 40 locations in Jinan, including Jingshi Road and Huayuan Road.

In November 2015, Shenzhen traffic police implemented “borrowing lanes for left turns” at the Huanggang Sungang intersection, later promoting it at eligible intersections citywide with optimized safety facilities to alleviate left-turn congestion.

In November 2021, Tianjin traffic police officially launched the “reverse variable lane” at the intersection of Second Avenue and South Sea Road in the Binhai New Area, using dynamic borrowing of opposing lanes to ease peak-hour left-turn pressure.

The application of the “reverse variable left-turn lane” requires scientific traffic flow analysis and should not be treated as a universal solution. It is unnecessary in scenarios with insufficient left-turn volume, inadequate intersection space, or large vehicle traffic.

Its promotion achievements include:

Significant improvement in traffic efficiency: Dynamic lane allocation alleviates conflicts between left-turn and through traffic.

Low construction costs: Single-point modification costs are only 1/5 to 1/10 of traditional road-widening projects.

Strong adaptability: Designs can be flexibly adjusted based on geometric conditions and traffic flow characteristics at different intersections.

The reverse variable left-turn lane is a typical example of urban traffic management transitioning from “extensive expansion” to “refined optimization.” Its core value lies in achieving maximum benefits with minimal investment through deep integration of time-space resources, providing replicable and scalable solutions for alleviating urban traffic congestion. In the future, with technological advancements and innovative models, this design will further integrate into intelligent traffic systems, contributing to the creation of more efficient and resilient urban road networks.

Source: 7ITSNEWS

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