4th International SIIV Congress SIIV 2007 | Advances in Transport Infrastructures and Stakeholders Expectations

Palermo | 12-14 September 2007

 

 

SIIV Lectures: Road Safety Evolution, Revolution, Convolution and Resolution: a North American Perspective

prof. Bhagwant N. Persaud | Ryerson University | Toronto, Canada

 

 

SESSION A1 – PAVEMENT

Agostinacchio M.la, Ciampa D., Olita S.
THE EVALUATION OF STRESS-STRAIN STATE OF ASPHALT BRIDGE JOINTS FOR HIGH STRUCTURAL DURABILITY

Agostinacchio M., Cuomo G.
ASPHALT CONCRETE PAVEMENT REINFORCEMENT THROUGH THE ADDITION OF MICRO-FIBRES AND STEEL MESHES

Augeri M.G., Colombrita R., Moliteo G.
COMPARISON BETWEEN TWO DIFFERENT VOLUMETRIC METHODS FOR MEASUREMENT OF PAVEMENT SURFACE MACROTEXTURE

Baldo N.
ADVANCED CONSTITUTIVE MODELING OF BITUMINOUS MATERIALS BY ENERGETIC APPROACH: FORMULATION, CALIBRATION AND EXPERIMENTAL EVALUATION

Bańkowski W., Sybilski D.
ENERGETIC METHOD AS AN ALTERNATIVE FOR CONVENTIONAL METHOD IN FATIGUE LIFE ANALYSIS OF BITUMINOUS MIXTURES

Birgisson B., Montepara A., Romeo E., Roque R., Tebaldi G.
THE EFFECT OF SBS ASPHALT MODIFIER ON HOT MIX ASPHALT (HMA) MIXTURE CRACKING RESISTANCE

Bocci M., Virgili A., Grilli A., Pannunzio V.
EXPERIMENTAL ANALYSIS OF THE POTENTIALITIES AND LIMITS OF ASPHALT MIXTURES BY ADDING ZEOLITE

Boscaino G., Celauro B., Celauro C., Amadore A.
EXPERIMENTAL TESTING FOR PHYSICAL AND FUNCTIONAL CHARACTERIZATION OF WEARING COURSES

Bosurgi G., Trifirò F.
PAVEMENT DESIGN AND MAINTENANCE VIA GENETIC ALGORITHMS

Bucchi A., Picariello F, Cocurullo A, Sangiorgi C.
ASSESSMENT OF MECHANICAL TESTS FOR STIFFNESS MODULUS DETERMINATION OF BITUMINOUS MIXTURES

Cafiso S., Di Graziano A.
STRUCTURAL DETERIORATION OF AC PAVEMENTS WITH AND WITHOUT STEEL REINFORCEMENT. IN FIELD EXPERIMENTAL COMPARISON

Cardone F., Cerni G., Colagrande S., Virgili A.
CORRELATION BETWEEN BINDER AND BITUMINOUS MIXTURE FATIGUE BEHAVIOUR

Celauro C., Collop A., Scarpas T.
EXPERIMENTAL CHARACTERIZATION OF ASPHALT FOR AN ELASTO-VISCO-PLASTIC CONSTITUTIVE MODEL

Chowdary V., Thushara V. T., Ahmed Asif K., Murali Krishnan J.
EXPERIMENTAL VERIFICATION OF EVOLUTION OF INTERNAL STRUCTURE OF ASPHALT AND MODIFIED ASPHALT

Colagrande S., Tallini M., Ranalli D., Scozzafava M.
DEGRADATION OF ROAD PAVEMENTS BUILT IN CUTTING SECTIONS EVALUATED WITH GPR

Coni M., Pani S.
FATIGUE ANALYSIS OF FIBER-REINFORCED CEMENT TREATED BASES

Crispino M., Lambrugo S., Venturini L.
A REAL SCALE ANALYSIS OF SURFACE CHARACTERISTICS OF A PHOTOCATALYTIC PAVEMENT

D’Apuzzo M., Nicolosi V
PREDICTING SKID-RESISTANCE PROGRESSION THROUGH MATHEMATICAL MODEL

Dondi G., Bragaglia M., Vignali V.
FLEXIBLE PAVEMENT SIMULATION WITH DISTINCT PARTICLE ELEMENT METHOD

Emery J. J.
PRACTICAL EXPERIENCE WITH EMULSION COLD IN-PLACE RECYCLING AND FOAMED ASPHALT FULL DEPTH RECLAMATION

Emery J. J.
MITIGATION OF ASPHALT PAVEMENT TOP-DOWN CRACKING

Franesqui M. A.
LIFE CYCLE ASSESSMENT FOR MEASURING THE ENVIRONMENTAL EFFECTS OF THE MANUFACTURE AND CONSTRUCTION OF BITUMINOUS MIX PAVING

Freire A. C., Antunes M. L., Dinis de Sousa C
APPLICATION OF MUNICIPAL SOLID WASTE INCINERATION BOTTOM ASH IN ROAD CONSTRUCTION. A CASE STUDY

Giuliani F., Merusi F.
CHARACTERIZATION OF DAMAGE BEHAVIOR IN MODIFIED BINDERS AT HIGH TEMPERATURES. MEASUREMENTS METHODOLOGIES AND RHEOMETRICAL ASPECTS

Giuliani F., Costa A.
AIR PERMEABILITY OF POROUS ASPHALT PAVEMENT

Giunta M., Pisano A.
RELEVANT CONSTITUTIVE CHARACTERISTICS OF ASPHALT CONCRETE MIXTURES: AN EXPERIMENTAL AND ANALYTICAL APPROACH

Grandi F., Vignali V.
TRAFFIC VIBRATION DAMPING: THE INFLUENCE OF PAVEMENT MATERIALS CONSTITUTIVE MODELS

Haider M., Descornet G., Sandberg U., Pratico, F. G.
ROAD TRAFFIC NOISE EMISSION: RECENT DEVELOPMENTS AND FUTURE PROSPECTS

Hassan M. M., Khalid H., Artamendi I., Overfield. G., Robinson. H., Laitinen. J.
DURABILITY AND LEACHING PROPERTIES OF BITUMINOUS MIXTURES CONTAINING INCINERATOR BOTTOM ASH AGGREGATE

Johnson C. M., Bahia H.U., Wen H.
EVALUATION OF STRAIN-CONTROLLED ASPHALT BINDER FATIGUE TESTING IN THE DYNAMIC SHEAR RHEOMETER

Livneh M.
STIFFNESS MEASUREMENTS AND CRITERIA FOR THE CONSTRUCTION OF ROAD FOUNDATIONS

Lo Bianco A., Madonia G.
B.U.L.M. technique for increase of the bearing capacity in the pavement layers subjected to biological treatment

Losa M., Bacci R., Leandri P.
A NEW STEP TOWARDS PERFORMANCE BASED SPECIFICATIONS FOR ASPHALT PAVEMENTS

Marchionna A.,Ossich G.
DEVELOPMENT OF A PREDICTIVE MODEL FOR THE TEMPERATURE DISTRIBUTION IN A FLEXIBLE PAVEMENT BASED ON MEASUREMENTS OF A MONITORED ROAD SECTION

Marradi A., Marvogli M.
FALLING WEIGHT DEFLECTOMETER MEASUREMENTS FOR EVALUATION OF THE BEARING CAPACITY OF GRANULAR UNBOUND LAYERS

Montepara A., Al-Qadi I. L., Tebaldi G., Costa A., Baek J., Rota V.
LOADING RESPONSES COMPARISON BETWEEN LABORATORY TESTING AND NUMERICAL MODELING FOR HOT-MIX ASPHALT SPECIMENS

Montepara, A., Tebaldi, G., Costa, A.
A SURFACE STEEL REINFORCEMENT FOR ASPHALT PAVEMENTS USING 3D FINITE ELEMENT MODEL

Pasetto M., Baldo N.
THE USE OF EAF STEEL SLAG IN BITUMINOUS MIXES FOR FLEXIBLE PAVEMENTS: A NUMERICAL AND EXPERIMENTAL ANALYSIS

Pisciotta M.
THE USE OF PREVALENT MINERAL FRACTION FIBRES IN DRAINING BITUMINOUS MIXTURES SUBJECT TO THERMAL STRESS

Portas S., Pau M
NOVEL EXPERIMENTAL CHARACTERIZATION OF THE TIRE-PAVEMENT SYSTEM

Praticò F. G., Moro A., Ammendola R.
COMPARING DIFFERENT PROCEDURES FOR THE MEASUREMENT OF THE BULK SPECIFIC GRAVITY FOR COMPACTED HMA SAMPLES

Praticò F. G., Moro A., Ammendola R.
JOINTS IN POROUS ASPHALT CONCRETES: DENSITY AND TEXTURE SINGULARITIES

Praticò F. G., Moro A., Ammendola R.
ASPHALT BINDER INFLUENCE ON CHEMICAL RESISTANCE OF HMAS: A THEORETICAL AND EXPERIMENTAL STUDY

Rampini R., Fiori F., Bacchi M.
EVALUATION OF COMPACTION BEHAVIOUR OF HOT MIX ASPHALT BY MEANS OF FINITE ELEMENT MODEL

Ranieri V., D’Auria D.
CLEARED AND GRADED AREA (CGA): CRITICAL ANALYSIS AND PROPOSAL OF A CRITERION FOR GRADING ITS BEARING CAPACITY

Rastelli S., Giuliani F.
SIMPLIFIED APPROACH FOR THE STATISTICAL CHECK OF STONE AGGREGATE SUPPLY BY MEANS OF IMAGE ANALYSIS METHOD

Ressel W., Benner A.
STRUCTURAL AND MONETARY EVALUATION OF FLEXIBLE PAVEMENTS ON THE BASIS OF REMAINING LIFE

Ressel, W., Eisenbach, C.D., Alber, S., Bergk, B., Wurst, F.
ENDURING TRAFFIC NOISE REDUCTION WITH POROUS ASPHALT IMPROVED BY POLYMER TECHNOLOGY

Santagata F.A., Canestrari F., Ferrotti G., Graziani A.
EXPERIMENTAL CHARACTERIZATION OF TRANSPARENT SYNTHETIC BINDER MIXES REINFORCED WITH CELLULOSE FIBRES

Santagata F. A., Canestrari F., Pasquini E.
MECHANICAL CHARACTERIZATION OF ASPHALT RUBBER – WET PROCESS

Sunarjono S., Zoorob S.E., Thom N.H.
INFLUENCE OF FOAMING WATER ON THE FOAMING PROCESS AND RESULTANT ASPHALT MIX STIFFNESS

Torres Vila J. A., Vega Zamanillo A., Calzada Pérez M.A., Llano Flórez J.M.
THE USE OF HYCORE® STEEL MAT FOR ASPHALT PAVEMENT CONSTRUCTION AND MAINTENANCE

Vicari M.
REINFORCEMENT WITH DOUBLE TWIST STEEL WIRE MESH: MODELING AND LABORATORY EXPERIENCES TO EVALUATE THE DESIGN LIFE IMPROVEMENT OF ASPHALT PAVEMENTS

Walubita Lubinda F.
COMPUTATIONAL MODELING OF PERPETUAL PAVEMENTS USING THE MEPDG VERSION 0.910 SOFTWARE

 

SESSION A2 – MANAGEMENT

Annunziata F., Maltinti F., Melis D.
WORKS FOR THE UPGRADING OF EXISTING ROADS: ASSIGNED FUNCTIONS, CORRESPONDING ROAD TYPES ,GEOMETRIC AND DESIGN CHARACTERISTICS

Astarita V., Gallelli V., Guido G., Vitale A.
MICROSCOPIC TRAFFIC SIMULATION OF NON-CONVENTIONAL ROUNDABOUTS PERFORMANCES: A CASE STUDY

Berloco N., Colonna P.
APPICATION OF GLOBAL LEVEL OF SERVICE AS AN EXPRESSION OF SERVICE RELIABILITY

Bonin G., Cantisani G., Loprencipe G., Sbrolli M.
RIDE QUALITY EVALUATION: 8 D.O.F. VEHICLE MODEL CALIBRATION

Bosurgi G., Trifirò F., Xibilia M. G.
ARTIFICIAL NEURAL NETWORKS FOR PREDICTING ROAD PAVEMENT CONDITIONS

Bruno L., Parla G., Rizzo A.
IMAGE PROCESSING FOR ROAD SIGNS INVENTORY

Cefalo R., Grandi G., Roberti R., Sluga T.
EXTRACTION OF ROAD GEOMETRIC PARAMETERS FROM HIGH RESOLUTION IMAGES VALIDATED BY GEODETIC TECHNIQUES

Chiarello G., Culatti M., Lamberti R., Montella A., Siviero E.
ARCHITECTURAL-QUALITY ASSESSMENT STRATEGIES FOR AN ENVIRONMENTALLY SUSTAINABLE ROAD DESIGN

Colonna P., Gordon C.
MEASURING TOTAL RATHER THAN PARTIAL RETURNS TO HIGHWAY INVESTMENTS: THE USE OF AN ECONOMIC EQUILIBRIUM CONCEPT

Colonna P., Guaragnella C., Ranieri V., Fonzone A.
USE OF RADAR DEVICES IN ROAD TRAFFIC SURVEYS

Cordasco M., Crocco F., Mongelli D., Walter E.
GEOMETRY INFLUENCE ON POLLUTING CONCENTRATIONS NEAR URBAN SIGNALIZED INTERSECTIONS

D’Apuzzo M.
SOME REMARKS ON THE PREDICTION OF ROAD TRAFFIC INDUCED GROUND-BORNE VIBRATIONS

D’Apuzzo; M., Nicolosi; V., Mattarocci; M.
INFLUENCE OF THICKNESS AND INTERFACE CONDITION VARIABILITY ON BACKCALCULATED LAYER MODULI FROM SURFACE DEFLECTION

Dell’Acqua G., Esposito T., Lamberti R., Abate D.
OPERATING SPEED MODEL ON TANGENTS OF TWO-LANE RURAL HIGHWAYS

Di Mascio P., Piccolo I., Cera L.
AUTOMATED DISTRESS EVALUATION

Di Mino G., Di Liberto C.M., Di Noto F., Nigrelli J.
A MULTI-OBJECTIVE APPROACH BASED ON THE GENETIC ALGORITHM TECHNIQUE FOR ROAD PAVEMENT MAINTENANCE

De Riso di Carpinone V., Tocchetti A.
COMPARING RUNWAY CAPACITY BETWEEN TWO ITALIAN AIRPORTS BY AN INNOVATIVE ANALYSIS PROCEDURE

D’Orso A., La Gennusa M., Nicolosi S., Trapani S., Scaccianoce G.
FUNCTIONAL RELATIONSHIPS BETWEEN EMISSION BY CARS AND URBAN POLLUTANT CONCENTRATIONS: A SIMPLIFIED PHENOMENOLOGICAL APPROACH

Federico G., Ferrante P., Lascari G., Sorrentino G., Traverso M.
A SIMPLIFIED METHOD FOR THE ENVIRONMENTAL IMPACT OF URBAN TRANSPORTATION

Festa D.C., Marasco A., Carrabetta Daniela
AN APPLICATION OF DEA ANALISYS TO EVALUTATE THE EFFICIENCY OF THE LAMEZIA AIRPORT PASSENGER TERMINAL

Galatioto F., Bell M.C.
SIMULATION OF ILLEGAL DOUBLE PARKING:QUANTIFYING THE TRAFFIC AND POLLUTANT IMPACTS

Korkiala-Tanttu L.
EIMI – A METHOD TO EVALUATE ENVIRONMENTAL IMPACTS OF INFRASTRUCTURE

Maltinti F.
NUMERICAL ANALYSIS TO DEFINE THE OPTIMUM INCLINATION OF EMBANKMENT SLOPES

Maltinti F., Annunziata F., Melis D.
METHODOLOGICAL PROPOSAL FOR ROAD NETWORK FUNCTIONAL UPGRADING

Melis D., Maltinti F.
METHODOLOGY TO ASSESS VULNERABILITY OF ROADS UNDER HYDROGEOLOGICAL EVENTS

Mendoza J.F., Rascon O.A., Tellez R., Flores M.A.
RESEARCH FOR AN ENVIRONMENTAL INDEX OF NOISE, BASED ON ITS EVOLUTION 2000-2005, ON FEDERAL HIGHWAYS AT QUERETARO STATE IN MÉXICO

Nikolov V., Dimitrova Al., Kostov K., Ivanov R.
THE BULGARIAN EXPERIANCE IN USING SLAG IN ROAD CONSTRUCTION

Pasetto M., Bortolini G., Salemi G., Achilli V., Boatto G.
ANALYSIS ON THE DETERIORATION OF ROAD PAVEMENTS THROUGH LASER SCANNING TECHNOLOGY

Pasetto M., Manganaro A.
TRANSVERSAL STABILITY AND VARIABILITY OF URBAN ROAD PROFILES

Psarianos B., Stamatiadis N., Palaskas S.
ATTITUDES OF GREEK DRIVERS TOWARDS POSTED SPEED LIMITS

Ressel W., Tejkl K.
NON-MONETARY LIFE-CYCLE ANALYSIS OF ROAD PAVEMENTS

Sciammarella, J. C.
OPERATIONAL AND ENGINEERING EMERGENCIES MANAGEMENT ON FEDERAL ROAD BR-277/PR, SECTION CURITIBA-PARANAGUÁ (BRAZIL)

Sciammarella, J. C.
GEOTECHNICAL ACCIDENT AT KM 87 OF FEDERAL ROAD BR-116/RJ – TERESOPÓLIS- BRAZIL – CAUSES ANALYSIS AND RECONSTRUCTION SOLUTIONS

Siviero E., Culatti M.
ROAD INFRASTRUCTURES: SITES, ARCHITECTURES, LANDSCAPES

Stamatiadis N., Gong H.
ANALYSIS OF INCONSISTENCIES RELATED TO DESIGN SPEED, OPERATING SPEED AND POSTED SPEED LIMIT

Vaiana R., Capiluppi G.F., Gallelli V.
ROUNDABOUT INTERSECTIONS: ANALYSIS FOR SCENARIOS BY MICRO-SIMULATION

 

SESSION A3 – SAFETY

Agostinacchio M., Cuomo G., Diomedi M.
USE OF CARSIM® FOR THE ASSESSMENT OF THE INFLUENCE OF CHANGE OF SPEED AND VISIBILITY ON ROAD SAFETY

Boscaino G., Galuppo G., Rinoldo C.
ANALYSIS OF THE EFFECTS OF SPEED BUMPS ON VEHICLE VERTICAL PATH

Bosurgi G., D’Andrea A.,Pellegrino O.
EVALUATION OF EXISTING ROADS BASED ON DRIVERS’ BEHAVIOUR

Buonsanti M., Leonardi G., Scopelliti F.
THERMAL ANALYSIS OF ROAD TUNNELS

Caliendo C., Guida M., Parisi A.
THE ASSOCIATION OF RAINFALL AND GEOMETRIC CHARACTERISTICS ON TRAFFIC CRASHES

Cafiso S., La Cava G., Montella A.
SAFETY EVALUATION PROCESS FOR TWO-LANE RURAL HIGHWAYS

Canale S., Leonardi S., Pappalardo G.
EXPERIMENTAL VALIDATION OF ACCIDENT PREDICTION MODELS FOR ROUNDABOUTS

Capaldo Francesco Saverio
SPEED ANALYSIS ON URBAN ROADS

Cerezo V., Gothié M.
HOW DESIGNING SAFER ROADS FOR HGV?

Cuomo G.
ASSESSMENT OF THE PEDESTRIAN CROSSING RISK: PROCESSING OF A NUMERICAL MODEL.SAFETY AT LEVEL CROSSINGS

Dessiaume G.
SAFETY AT LEVEL CROSSINGS. EXAMPLE OF A LEVEL CROSSING LOCATED NEAR A ROUNDABOUT. PRESENTATION OF THE TECHNICAL GUIDE

Distefano N., Leonardi S., Buscema D.
PROPOSAL OF A METHODOLOGY FOR AIRPORT PUBLIC SAFETY ZONES POLICY

Dondi G., Simone A., Sangiorgi C.
CHARACTERISATION OF A CRUMB RUBBER MIXTURE FOR ROAD RESTRAINT SYSTEMS

Eboli L., Mazzulla G.
A STRUCTURAL EQUATION MODEL FOR ROAD ACCIDENT ANALYSIS

Halleman B.
SAFER ROAD DESIGN MANAGING THE DRIVER CHALLENGE

Lamberti R., De Luca M
RELATION BETWEEN ACCIDENT RATES AND SPEED VARIATIONS ESTABLISHED BY THE GEOMETRY OF THE ROADS

La Torre F., Domenichini L., Caputo F.J.
A PROCEDURE FOR THE DESIGN OF BRIDGE RAIL ANCHORAGE FOR THE INSTALLATION ON EXISTING STRUCTURES

Leonardi S.
EXPERIMENTAL SURVEY TO TEST TRAFFIC CALMING MEASURES EFFECTIVENESS IN URBAN AREAS

Marchionna A., Perco P.
A PROPOSAL TO UPDATE THE CLOTHOID PARAMETER LIMITING CRITERIA OF THE ITALIAN STANDARD

Pernetti M., Scalera S.
DEVELOPMENT OF VALIDATED FINITE ELEMENT MODEL OF A PASSENGER CAR SUITABLE TO SIMULATE COLLISIONS AGAINST ROAD SAFETY BARRIER

Piras C., Pinna F.
LOCAL TESTS OF THE OPERATING SPEED MODELS FOR CURVES

Piras C., Pinna F.
RELATIONSHIP BETWEEN SIGHT DISTANCE AND OPERATING SPEED ON HORIZONTAL CURVES

Praticò F.G., Leonardi G., Scopelliti F., Giunta M.
ASSESSING ROAD SAFETY LEVELS IN A ROAD NETWORK ON THE BASIS OF UNLOCALISED ACCIDENT DATA

Roberti R.
EVALUATING CONSISTENCY OF TWO-LANE RURAL HIGHWAYS: AN APPROACH FOR LITTLE TWISTY ALIGNMENTS

Scibilia N.
FOOTBRIDGE DESIGN IN VIALE REGIONE SICILIANA IN PALERMO

Simone A., Vignali V., Marinelli M.
INTERSECTIONS DESIGN AND POWERED TWO WHEELERS INTERACTION: EXPERIMENTAL INVESTIGATION OF AN ACCIDENT PREDICTION MODEL

Siviero E., Culatti M.
FOOTBRIDGES AND THE SCOOL OF ARCHITECTURE IN VENICE

Siviero E., Michieletto P., Culatti M., Murciano L.,
Villanova A.
STUDY AND RESEARCH ON TRANSPORT INFRASTRUCTURES. EXPERIENCES AT THE IUAV UNIVERSITY OF VENICE D.C.A. (Department of Architectural Construction) (Section I)

 

SESSION B – RAILWAYS

Bonin G., Cantisani G., Carbonari M., Loprencipe G., Pancotto A.
RAILWAY TRAFFIC VIBRATIONS: GENERATION AND PROPAGATION – USE OF COMPUTATIONAL MODELS

Bonin G., Cantisani G., Carbonari M., Loprencipe G., Pancotto A.
RAILWAY TRAFFIC VIBRATIONS: GENERATION AND PROPAGATION – THEORETICAL ASPECTS

Bosurgi G., Fisichella G., Pellegrino O.
A METHOD TO ANALYSE THE SIGNAL PASSED AT DANGER (SPAD)

Capra A., Rinelli, S., Spinazzola, G.
MULTIMODAL TRANSPORT AXIS DESIGN. FORECAST MODEL FOR CROSSOVER SOLUTIONS IN ROAD NETWORK RECONNECTION

Di Mino G., Di Liberto C. M.
MODELLING AND EXPERIMENTAL SURVEY ON GROUND BORNE VIBRATION INDUCED BY RAIL TRAFFIC

Di Mino G., Di Liberto C. M.
A MODEL OF DYNAMIC INTERACTION BETWEEN A TRAIN VEHICLE AND A RAIL TRACK

Di Vincenzo G.
TECHNOLOGICAL INNOVATION AND ORGANIZATION OF MAINTENAINCE OF THE RAILWAY INFRASTRUCTURE

Duchon B.
COMPETITION AND RAILWAY SYSTEM

Fortunato E., Pinelo A., Lobo da Costa J., Gonçalves D., Pratas A.
SOME RESULTS OF PERFORMANCE INDICATORS OF A RAILWAY TRACK OBTAINED DURING ITS RENEWAL PROCESS

Mancini M.
TURKEY – ANATOLIAN MOTORWAY RETROFITTING OF VIADUCT 1

Martinelli F., Cara S., Domenichini L.
RAIL TUNNELS RISK ANALYSIS: THE EFFECTS OF INFRASTRUCTURE AND FIRE CHARACTERISTICS

Silvestri F., Aiello V., Socco V., Boiero D., D’Apuzzo M.
EXPERIMENTAL MEASUREMENTS AND NUMERICAL SIMULATIONS OF UNDERGROUND RAILWAY GROUND-BORNE VIBRATIONS