The most common taxi operation service consists conventionally of cruising randomly around a city to search for passengers. Because of de-regulation policies, over-supply and high vacancy rates have caused inefficient operation and low performance in the taxi market. Therefore, this paper aims to create an innovative operational service and to evaluate the environmental benefits of this service...

This paper builds a model for estimating the fuel consumption of a taxiing aircraft using flight data recorder information from operational aircraft. The taxi fuel burn is modeled as a linear function of several potential explanatory variables including the taxi time, number of stops, number of turns and number of acceleration events, and the coefficients are estimated using least-squares regre...

This paper presents a case study of a taxi drive company whose problem is the pick up passengers more efficiently in order to save time and fuel. The taxi company journey starts and ends in the two near by locations, which can be address as the same location for the problem solving, transforming this problem in a typical Travelling Salesman Problem where the goal is, given a set of cities and r...

This paper describes the winning solution to the Taxi Trip Time Prediction Challenge run by Kaggle.com. The goal of the competition was to build a predictive framework that is able to predict the final destination and the total traveling time of taxi rides based on their (initial) partial trajectories. The available data consists of all taxi trips of 442 taxis running in the city of Porto withi...

We give a definition of human uncertainty through subjective likelihood estimates. The subject is asked for his estimated likelihood of a discrete variable, given a present piece of uncertain observation, under the hypothetical assumption that the variable was uniformly distributed prior to the new observation. With this interpretation of human uncertainty, we are able to perform consistent inf...

In view of the ever-increasing air traffic, much attention in air-traffic-management research has been given to improving arrival and departure efficiency. As air traffic begins and ends at the airport, the issues of taxi delays and ground-operation incursions become more pressing. This paper considers the surface-traffic problem at major airports and envisions a collaborative traffic and aircr...

Aerodrome ground traffic management consists of many processes. Their complexity causes that telematic solutions intended to assist both the air traffic controller who coordinates taxiing and the pilot who executes them are introduced. An example of such a solution is A-SMGCS system. At the moment, intensive research on advanced system functions are carried out. They include smart taxi route ch...

Endo-beta-1,4-xylanases hydrolyze arabinoxylan, a major constituent of cereal cell walls, and are nowadays widely used in biotechnological processes. Purified complexes of family 11 xylanases from Aspergillus niger and Bacillus subtilis with TAXI I, a TAXI-type xylanase inhibitor from Triticum aestivum L., were prepared. In both cases the complex was crystallized using the hanging-drop vapour-d...