Short-term work planning and control

2006 ◽  
pp. 73-90
Author(s):  
A KELLY
Keyword(s):  
Short Term ◽  
Planning And Control ◽  
Work Planning ◽  
And Control

scholarly journals A Fast Integrated Planning and Control Framework for Autonomous Driving via Imitation Learning

2018 ◽  
Author(s):  
Liting Sun ◽  
Cheng Peng ◽  
Wei Zhan ◽  
Masayoshi Tomizuka
Keyword(s):  
Nonlinear Models ◽  
Autonomous Driving ◽  
Optimization Methods ◽  
Imitation Learning ◽  
Short Term ◽  
Model Based ◽  
Planning And Control ◽  
And Control ◽  
Optimal Driving

Safety and efficiency are two key elements for planning and control in autonomous driving. Theoretically, model-based optimization methods, such as Model Predictive Control (MPC), can provide such optimal driving policies. Their computational complexity, however, grows exponentially with horizon length and number of surrounding vehicles. This makes them impractical for real-time implementation, particularly when nonlinear models are considered. To enable a fast and approximately optimal driving policy, we propose a safe imitation framework, which contains two hierarchical layers. The first layer, defined as the policy layer, is represented by a neural network that imitates a long-term expert driving policy via imitation learning. The second layer, called the execution layer, is a short-term model-based optimal controller that tracks and further fine-tunes the reference trajectories proposed by the policy layer with guaranteed short-term collision avoidance. Moreover, to reduce the distribution mismatch between the training set and the real world, Dataset Aggregation is utilized so that the performance of the policy layer can be improved from iteration to iteration. Several highway driving scenarios are demonstrated in simulations, and the results show that the proposed framework can achieve similar performance as sophisticated long-term optimization approaches but with significantly improved computational efficiency.

From jambanja to planning: the reassertion of technocracy in land reform in south-eastern Zimbabwe?

2003 ◽  
Vol 41 (4) ◽  
pp. 533-554 ◽  
Author(s):  
Joseph Chaumba ◽  
Ian Scoones ◽  
William Wolmer
Keyword(s):  
Land Use ◽  
Land Use Planning ◽  
Land Reform ◽  
Fast Track ◽  
Livelihood Strategies ◽  
Reform Process ◽  
Short Term ◽  
Land Use Regulations ◽  
Planning And Control ◽  
And Control

This paper examines the land occupations and fast-track resettlement process in Chiredzi district in Zimbabwe's southeast lowveld, and argues that their broad-brush representation as chaotic, violent and unplanned is misleading. In Zimbabwe the instruments and mechanisms of order assert themselves even in the midst of violent disorder. The on-going deployment of the formal and technical tools and discourses of land-use planning have been instrumental in securing the visibility and legitimacy of Zimbabwe's new settlers. The speed and short cuts of the fast-track land reform process and vagueness of policies to date have in the short term opened up a certain amount of space for negotiation and a degree of leeway and flexibility in land-use planning and allocation. But the danger for the settlers is that, by deploying a discourse rooted in long-held and institutionally embedded Rhodesian traditions of planning and control, they have played into a process that – as so often in Zimbabwe's history – will re-impose coercive land-use regulations that are at odds with their livelihood strategies and seek to vet settlers and so undermine populist claims of redressing inequalities and providing land to the landless and poor.

scholarly journals The process timeline for sustainable construction management: case study in the construction of an educational centre

2018 ◽  
Vol 9 (5) ◽  
pp. 669
Author(s):  
Thais Taba da Silva ◽  
Márcio Rodrigues Clementino ◽  
Adriano Maniçoba da Silva ◽  
Wilson Yoshio Tanaka ◽  
Eugenio De Felice Zampini
Keyword(s):  
Small Businesses ◽  
Critical Path ◽  
Great Difficulty ◽  
Sustainable Construction ◽  
Short Term ◽  
Sustainable Building ◽  
Planning And Control ◽  
Management Case Study ◽  
And Control

Entrepreneurship is hard work, especially when it comes to the creation of an innovative, ecologically correct and sustainable project, and the small entrepreneur, in addition to facing bureaucratic and fiscal obstacles, has great difficulty in running his business, planning and optimizing his production for lack structured management knowledge. This is what happens with the company studied, where the construction of an educational centre, thought to be a model of ecological and sustainable building, did not have a schedule of execution, thus becoming dependent on very short term planning, accomplished at each step, rather than a structured action as a whole. In this sense, the Critical Path Method (CPM), which uses simple estimates for the duration of the building stages and the PERT technique, was implemented among a variety of schedules and methods for planning and control of works execution. This method is suitable and simple to use by small businesses. This methodology, easy to be understood and implemented, generated benefit to the company, allowing planning, predictability and control of the works.

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