ATRS World ConferenteRio de Janeiro-July/2005

OPERATIONAL ANALYSES OF THE GUARULHOS AIRPORT

APRON SERVICE ROAD SYSTEM

Hugo PietrantonioOswaldo Sansone Rodrigues Filho

Nicolau Dionísio Fares Gualda

Polytechnic SchoolUniversity of São Paulo/Brazil

Outline of the Presentation

• Short introduction on the Guarulhos Airport today ... and the planned expansion on its current Master Plan

• Description of the study and its results: – the data collection for the study of the apron roads

– the concepts and results on vehicular parameters

– the selection of level of service criteria and their use

– the forecasting of trips for alternative lay-outs of the airport

– the forecasting of traffic for alternative apron roads

– the specific results gathered with the application

• General conclusions and guidance on further reasearch

The Guarulhos Airport ...

• The international airport of the São Paulo Metropolitan Area (20 million inhabitants): 35 million pax/year, supplemented by Congonhas (domestic demand) and Viracopos/Campinas (general support, cargo demand)

Current Airport AreaTPS2

TPS1RLD

RCRG

TC

SA

LA

BT2BT1

TPS3TPS4

BT3BT4RLE

RS

R3POTC

OSA

General Support

Holding Areas

Features of the Study

• Due care with the apron service road system

• No previous study on operational parameters for the specific vehicles and on analysis methods

• Direct study from field data and first concepts:– CCTV cameras were used for data collection on the

operation of the vehicles on the apron service roads– Daily Reports on the schedule of flights for data on

trip demand (to be related to traffic flows ...)

• Analyses based on peak hours of traffic flow

Determination of Vehicular Parameters – Links & Junctions

• Specific vehicle types and operating rules ...• On road links: equivalent factors

– Intrinsic: passage of each vehicle type (size, speed)– Extrinsic: queues following extra-slow vehicle

following platoon (n=2) extra-slow vehicle

• On junctions: critical gaps and following times

• Conceptual details and formulas in the paper ...

Results on Vehicular Parameters

• Road links:

• Junctions:

intrinsic

+ extrinsic (queue

following extra-slow vehicles,

i.e. loaders)

conventional formulas

can estimate shared lane

capacity, queues ...

Level of Service Criteria and Target Values for Design

• Directly observable measure (for validation)

• Sensible criteria (as severe LoS requirements)

• Used for selecting appropriate design options

• Road links: practical capacity set at 50% and platoon after extra-slow vehicles up to 2v, mean– If not: turnouts, dual lane road, re-route ...

• Junctions: practical capacity set at 50% and 10% chance of 2v or + waiting (20% terminals)– If not: double lanes, decompose, re-route ...

Main Design Options

• On road links:

• On junctions:

Turnouts: extra-slow vehicles can be overtaken on moving ... e.g. 18 s to overtake with 60 m

Double lanes on the approach only

Decomposing: waiting position make possible to carried-out the maneuver in stages ...

Options to be avoided: re-route demand or change lay-out, support/holding areas

Forecasting of Trip Generation based on Future Scenarios

• Activities:

• Flights/Aircrafts: Typical turnaround and needs, initially from Airport Planning Manuals but validated to peak-hour flow before forecasting

Passenger E&D Bridges/Stais, Bus/Walk

Luggage/Cargo/Mail Tractors/Dollies/Carts, Loaders/ConveyorBelts

Catering/Cleaning Servicing Trucks

Towing/Push back Tractors

Fueling/ElectricPower

Air Conditioning/Pressure Maintenance Vehicles

Tractors, Servicing Trucks, Vans/Pick-ups

Forecasting of Traffic Flows and Design of the Apron Roads

• Tasks: - from needs of flights to O/D tripsimportant: support and holding areas

local movements and trips- “loading” of trips in their routesresults: flows on links and junctions

best design option/section

• Conventional, after getting the O/D trips

• LoS criteria: best design option, or re-route ...

• Again: carefull validation before forecasting

Results on the Apron Roads in Current and Future Scenarios ...

Conclusions and Further Research

• Need of a Method for analysis and design of apron service road systems of Airports– Need of operational parameters for specific vehicle

types and operating rules: results were validated ...– Need of procedure for forecasting trip generation

and traffic flow: importance of designation of support and holding areas and of validation ...

– Improvements: need and design of holding areas

• Successfull application to the update of the Guarulhos Airport Master Plan ...

Results on Vehicular Parameters

• Road links:

• Junctions:

intrinsic

+ extrinsic (queue

following extra-slow vehicles,

i.e. loaders)

conventional formulas

can estimate shared lane

capacity, queues ...

Hmin,i Ci=1/Hmin,i Ei,0=Hmin,i/Hmin,0

Standard Vehicle(0=up to pick-ups)

1st Vehicle Other Vehicles

Simple: opposed flow in one lane (one-way)

Complex: opposed flow two lane and/or two-way

Determination of Vehicular Parameters – Links & Junctions

• Specific vehicle types and operating rules ...• On road links: equivalent factors

– Intrinsic: passage of each vehicle type (size, speed)– Extrinsic: queues following extra-slow vehicle

following platoon (n=2) extra-slow vehicle

• On junctions: critical gaps and following times

• Conceptual details and formulas in the paper ...

Intrinsic: own use of road

Extrinsic, for extra-slow only, increase use of road by others Opposing flow

Critical gap: for first in the queue

Following time: others in queue