Section Control on Austrian motorwaysby Christian Stefan

Section Control on Austrian motorwaysSites of Section Control

Kaisermühlen tunnel

Stationary system/existing

Mobile section control/existing

Wechsel

Haid-Sattledt

Gmünd-Spital

Spital-Paternion

Mobile section control/planned

Section Control on Austrian motorwaysSites of Section Control

Motorway Length Site characteristic ImplementationSection Control

Kaisermühlentunnel

A22 2.3 km Accident prone tunnel since Aug. 2003 stationary

Wechsel A2 7.1 km high risk road section since Oct. 2004 stationary

Haid-Sattledt A1 11.0 km Construction area March 05 - Oct.

05mobile

Gmünd-Spital A10 9.0 km Construction area Oct.05 - Aug. 07 mobile

Spital-Paternion A10 12.0 km Testing area 160km/h May 06 - July 06 mobile

» ASFINAG: bid invitations for another 6 Section Control systems in 2006

Section Control on Austrian motorwaysSystem description

Section Control on Austrian motorwaysSystem description

Section Control on Austrian motorwaysSystem description

CameraFlash Laser detector

Section Control on Austrian motorwaysSystem description

Section Control on Austrian motorwaysObjectives

» Harmonization of traffic flow

» Surveillance of closed lanes

» Detection of wrong-way drives (’ghost cars‘)

» Image triggering for vehicles exceeding height limits

» Detection of stolen vehicles

» Traffic surveillance

» Statistical data

» Monitoring different speed limits

Section Control on Austrian motorwaysCase study Kaisermühlen tunnel

UN-Headquarters

Danube

Section Control on Austrian motorwaysCase study Kaisermühlen tunnel

Section Control on Austrian motorwaysAverage speed: Before/After

Passenger cars HGV

Before After Before After

Daytime 85 km/h 75 km/h 70 km/h 55 km/h

Nighttime 95 km/h 75 km/h 75 km/h 55 km/h

Section Control on Austrian motorwaysCosts/Benefits

Costs of the measure

» Investment costs

» Annual costs of operation and maintenance

Economic benefits

» Reduction of accident costs (numbers, severity of injury)

» Reduction of road traffic emissions

Section Control on Austrian motorwaysCosts of the measure

Expense factors Investment costs (€)

Annual capital costs [n=10, 4% p.a.]

Annual maintenance

costs (€)

Total annual costs (€)

Fixed Section control

1,200,000 € 147,949 207,949

Mobile Section control

700,000 € 86,304

60,000 146,304

Section Control on Austrian motorwaysAccident history

From To Period Injury

accidents Fatalities

Seriously injured

Slightly injured

12.08.1999 12.08.2000 IVb 7 1 0 10

12.08.2000 12.08.2001 IIIb 7 0 1 9

12.08.2001 12.08.2002 IIb 7 1 1 11

12.08.2002 12.08.2003 Ib 7 0 0 9

12.08.2003 12.08.2004 Ia 5 0 0 7

12.08.2004 12.08.2005 IIa 5 0 1 7

Mean (IVb – Ib) 7.0 0.5 0.5 9.8

» Reduction in total numbers of casualty accidents and severity of injury » since August 2002: no fatal accident recorded

Section Control on Austrian motorwaysSafety effects

Site Target group

Safety effect Test of

significance Analysis accounts for

Injury accidents: -33% significant (p<0,05)

Fatally/seriously injured: -49% not significant Kaisermühlen tunnel

injury accidents

Slightly injured: -32% significant (p<0,05)

Regression to the mean Changes in traffic volume Long term trends

all accidents: -35%

Injury accidents: -60% Mount Wechsel

all accidents

Damage property only: -30%

» Comparison ’Current situation’ vs. ’Anticipated situation without SC’ » Control group: development of accidents on motorways

Section Control on Austrian motorwaysValuation of environmental impacts

Changes in road traffic emissions

(t)

Discounted value of traffic emissions in € (2002-price)

CO - 14.9 -137

NOx - 39.0 -431,639

SO2 - 0.4 -1,552

Particle (PM10) - 0.5 -87,029

VOC + 7.3 +11,247

CO2 - 12,879.6 -281,973

Accumulated value -791.084

Monetary value of saved emissions per year

-79,108

» Emission model by the Austrian Umweltbundesamt » Input factors: vehicle type (passenger cars, lorries)

speed during day/night

changes in composition of vehicle fleet

Section Control on Austrian motorwaysSpeed violations and charges

Fines

Vehicles passing the Section Control Passenger cars HGV

All vehicles

Heading south (A23)

13,450,345 19,162 951 20,113

Heading north (Stockerau)

15,973,473 19,558 1,210 20,768

Total 29,423,818 38,720 2,161 40,881

» Aug.03 – Sept.04: more than 29 million vehicles measured

» 40.881 drivers charged because of speeding

Every 700th driver (0,14%) does not follow speed regulations (?)

» mutual recognition of financial penalties only with D, CH

Section Control on Austrian motorwaysCost-Benefit Ratio (CBR)

ROSEBUD (WP1): CBR > 3 are ranked „excellent“

Components of the CBA Benefits Costs

Road traffic emissions 79,108

Accident costs 1,025,903

Installation and maintenance costs

207,949

Total 1,105,011 207,949

5.3207,949

1,105,011

Costs

BenefitsCBR

Section Control on Austrian motorwaysConclusions

» Positive safety effect despite low accident rates

Accident rate in the Kaisermühlen Tunnel: 0.10 Austrian average on motorways: 0.12

» CBR would be higher if material damage accidents and foreign speeders were included

» Stronger effects on road sections with above-average accident rates

» CBA incorporates various effects (not only safety effects) into evaluation process » Results from this CBA can not be generalised but refer to a specific situation (Kaisermühlen Tunnel).

Section Control on Austrian motorways

Thanks for your attention