solutions to improve roads, journeys and communities seminarium zarządzanie prędkością speed...

Solutions to improve roads, journeys and communities

Seminarium

Zarządzanie PrędkościąSpeed Management

17 – 18.10.2013


Solutions to improve roads, journeys & communities

Adrian Grant, International Account ManagerSpeed Management in Road Works Zones


What do we do?

One stop service for integrated ANPR solutions.

• hardware & software development• Consultation on solution design• Full installation service• Support & maintenance


Vysionics World Firsts

1979 - First ANPR reader

1983 - First automatic plate detection ANPR system

1989 - First ANPR based journey time measuring system

1996 - First ANPR security cordon (City of London ring of steel)

1999 - First HOTA average speed system - SPECS

2002 - First ANPR congestion charging system (London)

2009 - First VCA approved automated bus lane enforcement

2009 - First HOTA networked average speed – SPECS3


SPECS : widely implemented & understood

Since HOTA in 1999, 30 permanent SPECS1 projects

Since HOTA in 2009, 24 permanent SPECS3 projects with 14 SCPs

300+ projects have operated SPECS average speed enforcement

Operated with 20, 30, 40, 50, 60 and 70mph schemes


How speed management improves safety at works sites

Increased risks due to works



Increased risks due to works

Use speed management to:

– reduce risk of collisions

– reduce severity of collisions

– reduce risk of intrusion into works area



Reduce collision risk?harmonise speed

Reduce severity?reduce speed

Reduce risk of intrusion?reduce risk and severity of collisions


How to harmonise speeds

Enforce the speed limit!


How to harmonise speeds

Enforce a reduced speed limit


Change behaviour, reduce risk


Current work site


Why does it work?

Visible deterrence

A77: NSL Dual Carriageway

Average speed signs

Data for all vehicle types

Data for both directions

85th %ile Speed (mph)

60.062.064.066.068.070.072.074.076.0

13 -

19 M

ay

27 M

ay -

2 Ju

n

10 -

16 J

un

24 -

30 J

un

8 - 1

3 Ju

l

21 -

27 J

ul

4 - 1

0 Aug

18 -

24 A

ug

% above limit (%)

0.0

5.0

10.0

15.0

20.0

25.0

13 -

19 M

ay

27 M

ay -

2 Ju

n

10 -

16 J

un

24 -

30 J

un

8 - 1

3 Ju

l

21 -

27 J

ul

4 - 1

0 Aug

18 -

24 A

ug


Benefit to driversMaintained three narrow running lanes

Journey times were more reliable

M4 j10-12

Westbound

16/02/2008

M4 j10-12

Eastbound

16/02/2008

Why does it work?


Effect of enforcementM1 6a-10

M1 j6a-10, North of LondonLargest roadworks in UK 17km of traffic managementFewer collisions than before the roadworks startedJourneys were reliable


Roadworks Enforcement

23 projects currently on the ground250 schemes have used SPECS average speed enforcementHighways Agency, Welsh Assembly & Transport Scotland use as standardOriginal justification was safety, along with:• smoother traffic flows• more reliable journey times• low offence levels• reduced emissions & noise

Consultative approach to assist designers


Roadworks Experience – smoother flows

M8 j28, January – April 2007Identical works were carried out in 2006, using spot-speed camerasSignificant delays had occurred:• 10-15 minutes on M8 (morning

peak)Findings

No delays on M8 at morning peakTraffic volumes were greaterCompliance with the 40mph speed limit is 99.7%Average speeds are 38mph through the scheme


Roadworks Experience – lower risk

M8 Jn 28 2006¹ 2007²

Offenders* 1083 97

Casualty Collisions** 0 0

Non Injury Collisions** 13 0

*Data for 6th – 17th March, both years

**Data from January – April, both years

¹ spot speed cameras

² average speed cameras


Safer >70% KSI Casualty reductions, typically

The casualty case is well proven: £1.6m (€1.9M) saving per site, per year

Data based on 3 year baseline and 3 year post-installation, extrapolated where less than three years installed.

Not isolated results75% reduction on average

Contentious for some!


Design Considerations

Hours of operation?Communications?Power?Visual appearance (columns, colour, signs)?Front or rear facing?Enforcement regime?• How many potential live links?• How many active live links?• Multiple offences on one journey?• Reporting on detection & offence levels?

A537 Cat & Fiddle, Cheshire


How to protect a road works site

Reduce speeds on approach• ensure safe passage into TM

Maintain constant speed through works area• achieve harmonised speeds

Release back to normal speed limit at departure• and not before!

Comply always with your national regulations / guidelines• don‘t feed the campaigners – or the lawyers



Reduce speeds on approach

• place first camera:

• after change in speed limit

• before entry into the cones

• definitely before any lane narrowing or deflection



Maintain harmonised speeds

• Observer Effect: remind them they’re being monitored

• place a camera every 2 to 3 minutes’ driving time

• use clear signing, of limitand of enforcement system



Maintain harmonised speeds

• Don’t leave gaps• regular drivers will learn where they pass cameras

• Cover slips where you can• extra camera?• change the layout to reduce gaps?



Release drivers safely beyond works area

• place final camera past the end of the risk area

• make sure drivers can see a camera in front as they exit the cones


SummaryHarmonise speeds

• Reduce risk

Reduce speeds

• Reduce severity

Safer journeys & works

More reliable journeys

Reduced cost and impact

Public perception remains good


Solutions to improve roads, journeys & communities

Adrian Grant [email protected]


Seminarium

Zarządzanie PrędkościąSpeed Management

17 – 18.10.2013

solutions to improve roads, journeys and communities seminarium zarządzanie prędkością speed...

Documents