This work addresses the capital cost implications of environmental impact allied to new highways. Those environmental impact considerations which are capable of being evaluated in terms of capital cost are distinguished from those which are concealed and cannot be evaluated using monetary values. The new design technique the Commercial Route Methodology (CRM) has been developed to evaluate in capital cost terms the concealed and unquantifiable impacts inter alia, visual intrusion, visual obstruction, effects on agriculture, ecological concern, heritage and conservation areas and aesthetic aspects.

The research described in this thesis consisted of the study of the concept of Planned Change, its application in diagnosing a particular problem, the implementation of a programme of planned change and its evaluation. The particular problem which gave rise to this research was the question of how to bring about a widespread increase in the efficient use of energy in local authority housing. This arose as a result of my membership of a small R & D group (SLCEG), working on local authority housing, where we had previously found that empirical evidence and rational argument was insufficient to encourage energy efficient housing design. The Concept of Planned Change offered an appropriate framework for investigating the problem as it is oriented towards improving social conditions through non-coercive means and provides for: identifying the various participants in the change process, diagnosis of the problem, setting goals and objectives, choosing strategies and designing a programme of activities and then monitoring their effect. Diagnosis of the problem identified that a multifaceted approach was required to solve the problem so that the design of the planned change programme included bringing about the formulation of an Energy Policy, creation of awareness of the benefits, practicality and affordability of energy efficient dwellings, identification and utilisation of leverage points and various other educational and facilitative activities. The Evaluation of the programme included both objective and subjective methods and indicated that a significant movement towards energy efficiency has been achieved but that adoption of this change is not evenly spread and that there are areas of resistance yet to be overcome. As a result of the evaluation, modifications to the programme of planned change were proposed which will include alterations to the exhibition, further educational activities - courses, workshops, etc. and wider dissemination of the energy savings achieved.

No description available.

The broad aim of this study is to develop a greater understanding of modern British Town Planning by examining, in depth, its operation during the 1920s and early 1930s, i. e. the period of the Second Town Planning Act. Two main themes are explored; the ideology of town planning and, the practical achievements of the activity. These are studied in their national context and in several empirical studies of events on Teesside and in Hartlepool. The ideology of town planning is seen to be dominated by the notion of consensus. This is seen as part of a wider process in British political life. Such a notion fitted into the view of town planning as a non-political, technical activity. In practice, it is demonstrated that consensus was rarely achieved and dominant landowning forces usually achieved their ends in any conflict over land-use with the aid of the Ministry of Health. The practical achievements of town planning in this period are generally portrayed as weak and of little interest. This study demonstrates that although the scope of town planning was deliberately limited it was reasonably successful in meeting its objectives. The experience of town planning by growing numbers of local authorities in the 1920s and early 1930s helped to lay the foundation of modern town planning. Without this experience it is doubtful if the accomplishments of town planning in the 1940s and 1950s would have been possible. Whilst the experience of town planning between 1919 and 1933 is seen to be much richer and more important than commonly realised the scope and purpose of the activity is seen as limited from the outset by narrow political objectives.

In this study a dynamic assignment model is developed which estimates travellers' route and departure time choices and the resulting time varying traffic patterns during the morning peak. The distinctive feature of the model is that it does not restrict the geometry of the network to specific forms. The proposed framework of analysis consists of a travel time model, a demand model and a demand adjustment mechanism. Two travel time models are proposed. The first is based on elementary relationships from traffic flow theory and provides the framework for a macroscopic simulation model which calculates the time varying flow patterns and link travel times given the time dependent departure rate distributions; the second is based on queueing theory and models roads as bottlenecks through which traffic flow is either uncongested or fixed at a capacity independent of traffic density. The demand model is based on the utility maximisation decision rule and defines the time dependent departure rates associated with each reasonable route connecting, the O-D pairs of the network, given the total utility associated with each combination of departure time and route. Travellers' choices are assumed to result from the trade-off between travel time and schedule delay and each individual is assumed to first choose a departure time t, and then select a reasonable route, conditional on the choice of t. The demand model has therefore the form of a nested logit. The demand adjustment mechanism is derived from a Markovian model, and describes the day-to-day evolution of the departure rate distributions. Travellers are assumed to modify their trip choice decisions based on the information they acquire from recent trips. The demand adjustment mechanism is used in order to find the equilibrium state of the system, defined as the state at which travellers believe that they cannot increase their utility of travel by unilaterally changing route or departure time. The model outputs exhibit the characteristics of real world traffic patterns observed during the peak, i. e., time varying flow patterns and travel times which result from time varying departure rates from the origins. It is shown that increasing the work start time flexibility results in a spread of the departure rate distributions over a longer period and therefore reduces the level of congestion in the network. Furthermore, it was shown that increasing the total demand using the road network results in higher levels of congestion and that travellers tend to depart earlier in an attempt to compensate for the increase in travel times. Moreover, experiments using the queueing theory based travel time model have shown that increasing the capacity of a bottleneck may cause congestion to develop downstream, which in turn may result in an increase of the average travel time for certain O-D pairs. The dynamic assignment model is also applied to estimate the effects that different road pricing policies may have on trip choices and the level of congestion; the model is used to demonstrate the development of the shifting peak phenomenon. Furthermore, the effect of information availability on the traffic patterns is investigated through a number of experiments using the developed dynamic assignment model and assuming that guided drivers form a class of users characterised by lower variability of preferences with respect to route choice.

The future complexity of strategic issues in international structural change was demonstrated by UK and SA ports. This arose from the likely extent of structural constraints and the effects of stakeholder power. From a review of emerging Advanced Systems Theory a new Boundary -spanning perspective of strategy was developed, that led to the specification of conceptual circumstances of potential outcomes of change. Since existing systems methodologies could not accommodate future power relationships, a new methodology and data collection technique was developed. The circumstances were developed into multiple scenarios which were judged by international decision-makers. These judgements were subjected to quantitative and qualitative analysis from a Strategic Choice Perspective. The outcome was a Boundary -spanning 'Long-term Strategic Service Industry' model which proposed the outlines of the future strategy and organisational structure that ought to be adopted to meet 'public interest' constraints. A dual subject and methodological contribution was made.

The study proposes to operationalise sustainable development within an urban environment and at a variety of scales - strategic to neighbourhood. The study examines the convergence of ideas within urbanity and sustainability, identifying inconsistencies and contradictions within current thematic research. It proposes a consensual approach to understanding the linked substantive, analytical and procedural attributes underlying a developing chronology of concepts relating to sustainability. This chronology of ideas provides the basis for a systems-based framework that recognises the complexity of urban areas. The study advocates and introduces an adaptive framework of spatial indicators of urbanism to simplify and communicate an holistic overview of attributes of sustainability. This interpretation of holism is based on thematic (qualitative / quantitative) and scalar (strategic / local) based integration on a consistent (spatial) basis. This adaptive framework is designed to be suitable for locality specific subjective interpretations of sustainability. It is linked to a non-expert methodological 'toolkit' that places an emphasis on currently undervalued qualitative and spatial data collection methods. This is a mixed and multi- method approach to understanding spatial (urban) systems that complements empirical data sets. A series of case studies are used to test and refine qualitative collection from primary and secondary sources and spatialisation methods. Sample material is then used to test the utility and ease of use of GIS for data manipulation, analysis and modelling. Two detailed and complementary applications of the adaptive framework, the data inventory / collection methods and the use of GIS based digital spatial databases are used to illustrate the potential range of applications and highlight problems of use. A number of possible future developments of the study are suggested for maximising the utility of the conceptual approach and a developed spatial database for a variety of agents, exploring additional dimensions of the urban system.

No description available.

Property theory has long explored the meaning and content of private property. Similarly, one finds no shortage of analysis of common or communitarian property. In the theoretical literature, however, one finds very little writing about public property, a third, very significant, type of property. This lack of attention is not due to a lack of examples; on the contrary, examples abound. This thesis offers a theoretical analysis of one such example: Crown land in Australia. Crown land is a largely forgotten and therefore under-analysed aspect of Australian real property law. This lack of analysis has produced significant confusion in recent judicial developments concerning Australian common law native title. In order to alleviate the potential for confusion, this thesis fills a long-standing gap in the literature of Australian real property law. In order to fill this gap and to provide a much-needed analytical account, it is necessary to make use of working definitions of private, public and communitarian property. This thesis provides each. First, using JW Hams' Property and Justice, it constructs a working definition of private property. From that, by way of contrast, a working definition of public property is offered. Finally, by way of contrast to both private and public property, a working definition of communitarian property is also developed. Armed with working definitions of private, public and communitarian property, the thesis provides an analytical account of Crown land in Australia. It describes Crown land as the quasi-ownership use-privileges and control-powers which the Crown, by virtue of its prerogative power over land, enjoys in Australian land. The Crown enjoys differently packaged bundles of such privileges and powers over many different sorts of land, such as those which have never been allocated for any use, specific natural resources such as minerals or petroleum, those over which Australia's Aboriginal peoples enjoy native title, and even those over which private persons hold freehold estates or statutory leases. All such lands, due to the Crown's quasi-ownership privileges and powers therein, can be called Crown land, which embraces a continuum of locations, each defined by a unique package of such privileges and powers over the relevant type of land. The thesis calls this the Crown land continuum, which, in its totality, is a working example of public property.

No description available.