Guidelines for Expressways Part I
2010 Edition

MoRTH 278 Part 2 does not provide explicit clauses or formulas specifically for Toll Plaza Operation or Design. Nevertheless, based on accepted engineering standards and relevant regulations, key parameters include:

Design and Operational Specifications for Toll Plazas

• Lane Width: Minimum 3.5 meters per toll lane to ensure smooth vehicle movement.
• Spacing Between Toll Booths: At least 6 meters center-to-center for maneuverability.
• Approach Lane Length: Minimum 150 meters for deceleration before toll plaza.
• Exit Lane Length: Minimum 150 meters for acceleration after toll plaza.
• Canopy Clearance: At least 5 meters above toll booths.
• Advance Signage: Warning signs placed at least 300 meters prior to the plaza.
• Lighting: Adequate illumination for continuous operation, typically 200 lux at booths.

General Operational Formulas

• Lane Capacity (vehicles per hour):

  C = 3600 / t_s

  Where t_s = average service time per vehicle in seconds.

• Overall Toll Plaza Capacity:

  C_total = n × C

  Where n = number of toll lanes.

Typical Toll Plaza Layout (Mermaid.js)

flowchart LR
    A[Approach Road] --> B[Deceleration Lane]
    B --> C[Toll Booths]
    C --> D[Acceleration Lane]
    D --> E[Exit Road]

For detailed design guidance, refer to IRC: SP: 84 and IRC: 67 for geometric design standards.

Overview of Traffic Management Systems (MORTH 278 Part 2, Chapter 2)

1. Components of Traffic Control

• Data Acquisition Systems:

  • Emergency communication networks
  • Mobile communication devices
  • Weather monitoring systems
  • Automatic traffic counting and classification (ATCC)
  • CCTV monitoring
  • Data transmission infrastructure
  • Patrol vehicle tracking

• Control Centers:

  • Traffic Management Center (TMC)
  • Facility Operations Center
  • Disaster Management Center

• Information Distribution:

  • Variable Message Signs (VMS)
  • Mobile VMS on vehicles
  • Highway advisory radio broadcasts
  • Online and mobile platforms
  • Vehicle Information and Communication Systems (VICS)

2. Incident Handling

• Gathering accident data
• On-site response procedures

Common Abbreviations

Tailgating Distances (Clause 1.8.2.1)

• Refer to Table 1.3 for specific tailgating distance criteria.

System Flow Diagram

graph LR
  A[Data Collection] --> B[Control Center]
  B --> C[Information Dissemination]
  C --> D[Road Users]
  B --> E[Incident Management]
  E --> B

This configuration supports continuous data exchange for effective traffic regulation and emergency response.

For precise calculations and tailgating guidelines, consult Table 1.3 in the standard.

Although MORTH 278 Part 2 does not specify formulas or tables under Service Area Management (Chapter 3), important aspects typically include:

Key Points in Service Area Oversight:

• Definition: Administration of operational and upkeep tasks within designated service zones.
• Immediate Response (Clause 2.2.2.3): Protocols for prompt action on maintenance issues.
• Organizational Setup: Allocation of human resources, machinery, and materials for efficient service delivery.

Typical Parameters (Industry Practice):

• Service Area Dimensions: Determined by traffic volume and route length.
• Response Time Objective: Generally within 30 minutes for critical repairs.
• Resource Deployment: Based on road length, traffic density, and classification.

Example Resource Planning Table:

For specific maintenance scheduling formulas or optimization details, please specify requirements.

Summary of Maintenance Activities and Machinery (Clause 5.02, Table 5.1.7.2)

| Surface Special | Dust control | Trucks with spreaders, graders, stabilizing mixers, bituminous distributors | | | Soil surface replacement | Loaders, dozers, shovels, tractors, scrapers, motor graders, rollers (pneumatic, sheepsfoot, steel) | | | Bituminous surface replacement | Power shovels, loaders, tank trucks with heater and distributor, power brooms, chip spreaders, steel-wheel rollers |

Types of Maintenance (Fig. 2.01: IV-49)

• Routine: Regular blading, patching, sealing
• Special: Dust suppression, surface replacement
• Preventive: Scheduled inspections and minor fixes
• Disaster Prevention: Emergency repairs and mitigation

Notes:

• Equipment choice depends on surface type and maintenance phase.
• Compaction usually requires pneumatic or steel-wheel rollers.
• Bituminous work involves heating, mixing, and laying equipment.
• Concrete patching requires vibrators and mechanical floats for compaction.

flowchart TD
    A[Maintenance Operations] --> B[Routine Surface]
    A --> C[Special Surface]
    B --> B1[Blading & Dragging]

Highlights from MoRTH 278 Part 2 Volume IV (Maintenance)

• 6.1 Data Gathering Equipment

  • Includes tools for pavement condition evaluation and bridge inspection.
  • Devices: Surface condition sensors, structural data collectors.
  • Purpose: Accurate maintenance planning through precise data.

• 6.2 Bituminous Pavement Milling and Overlay

  • Covers both plant-based and on-site recycling methods.
  • Aims to improve sustainability and lifespan.

• 6.3 Permeable Asphalt Pavement

  • Designed for enhanced drainage and water permeability.

• 6.4 Micro Surfacing

  • Surface treatment to rejuvenate pavement layers.

• 6.5 Rigid Pavement Milling and Overlay

  • Techniques and specifications for concrete pavement maintenance.

• 6.6 Bridge Deck Waterproofing

  • Measures to prevent water penetration, extending deck durability.

• 6.7 Structural Repairs Using Epoxy Resin

  • Methods for crack repair and structural strengthening.

Reference Table:

Process Flow (Mermaid.js)

flowchart LR
    A[Data Collection] --> B[Pavement Assessment]
    A --> C[Bridge Inspection]
    B --> D[Milling & Overlay]
    B --> E[Permeable Asphalt]
    B --> F[Micro Surfacing]
    B --> G[Rigid Pavement Overlay]
    C --> H[Bridge Deck Waterproofing]
    C --> I[Epoxy Resin Repairs]

For detailed equipment specs and formulas, consult Clauses 6.1 to 6.7 in Volume IV.

Equipment Overview (Clause 6.1, Table 6.01)

Notes on Usage (Clause 6.1.7):

• Equipment choice is based on required accuracy and survey method.
• Class-I roughness equipment provides highest precision.
• Mechanical testing relies mostly on FWD, DCP, and Deflection Beam.
• Surface distress assessment involves video and visual examination.
• Geometry data gathered through GPS and INUs for exact spatial mapping.

Equipment Classification Diagram

graph TD
    Roughness -->|Class-I| Laser
    Roughness -->|Class-I| Manual
    Roughness -->|Class-II| Other Profilometers
    Roughness -->|Class-III| IRI Estimates
    Roughness -->|Class-IV| Subjective Ratings
    Mechanical --> FWD
    Mechanical --> Deflection_Beam
    Mechanical --> DCP
    Surface_Distress --> Video_Analysis
    Surface_Distress --> Visual_Survey
    Surface_Distress --> Transverse_Profilers
    Geometry --> GPS
    Geometry --> INU

For company details and equipment catalogs, visit www.road-management.info as referenced.

Preventive Maintenance Approach (Clause 7.2)

Preventive maintenance is initiated based on inspection findings to preclude failures by timely interventions.

Fundamental Principles:

• Inspection outcomes determine maintenance needs and resource allocation.
• Maintenance type depends on inspection ranking:

Guidelines:

• Corrective actions address urgent issues (rating AA).
• Preventive measures tackle potential problems before failures (ratings A, B, C).

Examples of Equipment for Preventive Maintenance:

• Road patrol and maintenance vehicles
• Cleaning machinery including sweepers and drainage cleaners
• Repair equipment for patching and milling
• Survey vehicles for bridge inspection, surface evaluation, skid testing
• Advanced instruments such as laser crack detectors and tunnel wall scanners

flowchart TD
    Inspection -->|Rating AA| Corrective_Maintenance
    Inspection -->|Ratings A,B,C| Preventive_Maintenance
    Preventive_Maintenance --> Maintenance_Resources
    Corrective_Maintenance --> Maintenance_Resources

This system ensures maintenance is proactive, efficient, and enhances expressway durability and safety.

Disaster Management Highlights (Chapter 8)

• Covers proactive preparedness, emergency response, repair policies, and restoration activities.
• Emphasizes slope stabilization, earthquake resistance, and swift recovery.

Slope Stabilization Methods (Clause 8.6)

Earthquake Protection (Clause 8.7)

• Expansion joints and girder connections accommodate seismic movements.
• Pier reinforcement improves strength and flexibility.

Formula for Shotcrete Thickness

t = P / (f_c × γ)

Where:

• t = shotcrete thickness (meters)
• P = design load (kN/m²)
• f_c = concrete compressive strength (kN/m²)
• γ = safety factor (usually 1.5)

Emergency Procedures and Repair Policies

• Rapid damage assessment and prioritization
• Temporary supports and swift restoration to maintain traffic flow

flowchart TD
    A[Disaster Preparedness] --> B[Pre-Event Measures]
    A --> C[Emergency Response]
    A --> D[Slope Protection]
    A --> E[Seismic Mitigation]
    A --> F[Restoration]

    D --> D1[Concrete Block Frames]
    D --> D2[Shotcrete Applications]

Timely emergency responses coupled with comprehensive restoration and preparedness minimize disaster impacts on expressways.