The impact of new oral fluid drug driving detection methods in Queensland: are motorists deterred?

Queensland Police Services have commenced random roadside drug testing of motorists to collectively apprehend as well as deter potential offenders. The present study aimed to examine a sample of Queensland drivers’ (N = 462) level of awareness of the new testing method as well as determine the impact of the countermeasure and other non-legal sanctions on intentions to drug drive. The findings revealed that respondents were generally unaware of the new testing method and a similar proportion remained uncertain regarding the effectiveness of detecting drivers who are driving under the influence of illicit drugs. An examination of the factors associated with intentions to drug drive again in the future revealed that perceptions of apprehension certainty was a significant predictor, as those who reported a lower certainty of apprehension were more likely to report intending to offend. Additionally, self-reported recent drug driving activity and frequent drug consumption were also identified as significant predictors, which indicates that in the current context past behaviour is a prominent predictor of future behaviour. The findings of the study confirm the popular deterrence-based assumption that increasing perceptions of apprehension certainty, such as through random road-side testing, may yet still prove to be an effective method of reducing the burden of drug driving on road safety

A regional multiplier approach to estimating the impact of cash transfers: The case of cash aid in rural Malawi

This paper analyses the impact on the local economy of an emergency cash transfer programme in rural Malawi. The results are of interest given the growing use of cash transfers as development aid as well as the increasing popularity of such transfers as a form of social protection across Sub-Saharan Africa. Using a form of social accounting matrix, we find that there are widespread benefits for regional economy as a whole (with multiplier estimates of 2.02 to 2.45) and for certain groups in particular. Small farmers and small businesses gain particular advantage as this is where poorer households’ purchases are focused; education and health also benefit. Such payments can also help to support the regional economy during the most “lean” periods of the year.Rural Economic Development; Cash Transfers; Income Multiplier; Poverty; Malawi; Africa

Australian forensic psychologists' perspectives on the merits and limits of actuarial instruments in predicting recidivism among violent offenders and sex offenders

Actuarial approaches are regarded as more accurate than both unstructured and structured clinical approaches in assessing risk of recidivism among sex offenders. While there has been a plethora of research on evaluating the effectiveness of actuarial instruments, there has been a paucity of research investigating their actual level of use in forensic settings. In addition, little is known about the practical difficulties associated with administering actuarial instruments. This paper reports on a survey completed by forensic psychologists in Australia about the risk assessment tools they prefer and the benefits and difficulties associated with their use. In addition, the paper explores the extent to which forensic psychologists use clinical information to adjust the level of risk identified through the actuarial approach. The findings are discussed in light of the utility of particular approaches to assessing risk of recidivism among violent offenders and sex offenders

Data-driven personalisation and the law - a primer: collective interests engaged by personalisation in markets, politics and law

Interdisciplinary Workshop on â��Data-Driven Personalisation in Markets, Politics and Law' on 28 June 2019Southampton Law School will be hosting an interdisciplinary workshop on the topic of â��Data-Driven Personalisation in Markets, Politics and Law' on Friday 28 June 2019, which will explore the pervasive and growing phenomenon of â��personalisationâ�� â�� from behavioural advertising in commerce and micro-targeting in politics, to personalised pricing and contracting and predictive policing and recruitment. This is a huge area which touches upon many legal disciplines as well as social science concerns and, of course, computer science and mathematics. Within law, it goes well beyond data protection law, raising questions for criminal law, consumer protection, competition and IP law, tort law, administrative law, human rights and anti-discrimination law, law and economics as well as legal and constitutional theory. Weâ��ve written a position paper, https://eprints.soton.ac.uk/428082/1/Data_Driven_Personalisation_and_the_Law_A_Primer.pdf which is designed to give focus and structure to a workshop that we expect will be strongly interdisciplinary, creative, thought-provoking and entertaining. We like to hear your thoughts! Call for papers! Should you be interested in disagreeing, elaborating, confirming, contradicting, dismissing or just reflecting on anything in the paper and present those ideas at the workshop, send us an abstract by Friday 5 April 2019 (Ms Clare Brady [email protected] ). We aim to publish an edited popular law/social science book with the most compelling contributions after the workshop.Prof Uta Kohl, Prof James Davey, Dr Jacob Eisler<br/

Work-related road safety risk assessment: utilisation of self-report surveys to predict organisational risk

Work-related driving safety is an emerging concern for Australian and overseas organisations. Research has shown that road crashes are the most common cause of work-related fatalities, injuries and absences from work. This study's objectives were to identify driver characteristics which pose potential risks to work-related driving safety within the organisation, as well as determining the value of such self-reported data to predict crash involvement and general aberrant driving behaviours. This paper reports on a study examining the predictive utility of predominant self-report questionnaires to identify individuals involved in work-related crashes within an Australian organisational fleet setting (N = 4195). Survey questionnaires included the Manchester Driver Behaviour Questionnaire (DBQ), Driver Attitude Questionnaire (DAQ), Safety Climate Questionnaire – Modified for Drivers (SCQ-MD) and Risk Taking. The tools were distributed through the company’s internal mail system to employees who volunteered to participate in the study. An important finding to emerge was that a potential fleet "speeding culture" was identified from univariate analyses. For example, drivers were most likely to report engaging in speeding behaviours and also believed that speeding was more acceptable compared to drink driving, following too closely or engaging in risky overtaking manoeuvres. However, multivariate analysis determining factors associated with self-reported crash involvement revealed that increased work pressure and driving errors were predictive of crash risk, even after controlling for exposure on the road. This paper highlights the major findings of the study and discusses the implications and difficulties associated with utilising driver behaviour measurement tools within contemporary organisational fleet settings

The Influence of Occupational Driver Stress on Work-related Road Safety: An Exploratory Review

Research has identified a number of stressors that could impact on the occupational driver by increasing stress levels and, for some individuals, causing adverse behaviour and effects, for example, aggressive behaviour, fatigue, inattention/distraction, and substance abuse. For safety professionals and employers, one way to reduce the effects of occupational driver stress is to change perceptions so that management and drivers recognise that work-related driving is as important as other work-related tasks. This article explores relevant literature in relation to driver stress and suggests additions to risk management processes and safety procedures/policies, including assigning sufficient basic resources to target occupational stress (particularly occupational driver stress)

Perceptions of Work-Related Road Safety - Safety Versus Savings

In Douglas Adam’s "The Hitchhiker’s Guide to the Galaxy", published in the 1970s, a computer is confronted with the intriguing question: "What is the meaning of life?" After elaborate and tedious number crunching, the computer returns: "The answer to your question is 42". It is obvious, that the monetary valuation of road safety is not an easy task either. In fact, it implies answering an equally difficult and intriguing question – What is the statistical value of a human life? Although various methods and approaches have been put forward to estimate the statistical cost of a road fatality, some scholars argue that valuing fatal injuries and hence human life is virtually impossible. They maintain that people do not nearly have sufficiently accurate preferences to make a sensible trade-off between road safety and money. The (perceptions of) changes in risk levels are so small that making the trade-off is very difficult, if not impossible (Hauer, 1994). However, other road safety costs can be statistically determined and initiatives developed to reduce the burden to both organisations and individuals. Therefore, the topic of this paper is to determine what factors contribute to work-related road incidents and how economic costs to industry organisations could be reduced

CHANNEL CODING TECHNIQUES FOR A MULTIPLE TRACK DIGITAL MAGNETIC RECORDING SYSTEM

In magnetic recording greater area) bit packing densities are achieved through increasing track density by reducing space between and width of the recording tracks, and/or reducing the wavelength of the recorded information. This leads to the requirement of higher precision tape transport mechanisms and dedicated coding circuitry. A TMS320 10 digital signal processor is applied to a standard low-cost, low precision, multiple-track, compact cassette tape recording system. Advanced signal processing and coding techniques are employed to maximise recording density and to compensate for the mechanical deficiencies of this system. Parallel software encoding/decoding algorithms have been developed for several Run-Length Limited modulation codes. The results for a peak detection system show that Bi-Phase L code can be reliably employed up to a data rate of 5kbits/second/track. Development of a second system employing a TMS32025 and sampling detection permitted the utilisation of adaptive equalisation to slim the readback pulse. Application of conventional read equalisation techniques, that oppose inter-symbol interference, resulted in a 30% increase in performance. Further investigation shows that greater linear recording densities can be achieved by employing Partial Response signalling and Maximum Likelihood Detection. Partial response signalling schemes use controlled inter-symbol interference to increase recording density at the expense of a multi-level read back waveform which results in an increased noise penalty. Maximum Likelihood Sequence detection employs soft decisions on the readback waveform to recover this loss. The associated modulation coding techniques required for optimised operation of such a system are discussed. Two-dimensional run-length-limited (d, ky) modulation codes provide a further means of increasing storage capacity in multi-track recording systems. For example the code rate of a single track run length-limited code with constraints (1, 3), such as Miller code, can be increased by over 25% when using a 4-track two-dimensional code with the same d constraint and with the k constraint satisfied across a number of parallel channels. The k constraint along an individual track, kx, can be increased without loss of clock synchronisation since the clocking information derived by frequent signal transitions can be sub-divided across a number of, y, parallel tracks in terms of a ky constraint. This permits more code words to be generated for a given (d, k) constraint in two dimensions than is possible in one dimension. This coding technique is furthered by development of a reverse enumeration scheme based on the trellis description of the (d, ky) constraints. The application of a two-dimensional code to a high linear density system employing extended class IV partial response signalling and maximum likelihood detection is proposed. Finally, additional coding constraints to improve spectral response and error performance are discussed.Hewlett Packard, Computer Peripherals Division (Bristol