These files update the language courses to version 3.7.6.2 r10 (Levels 1 to 5)

Start learning a new language and see where it takes you. Whether you want to make the most of your holiday, get that promotion at work or be able to have a conversation with your relatives from other countries, just 30 minutes a day can get you on the road to speaking confidently. Make every second count – on the train or in a queue – and take the first step on your language-learning journey.

These files update the language courses to version 3.7.6.2 r10 (Levels 4 and 5)

Start learning a new language and see where it takes you. Whether you want to make the most of your holiday, get that promotion at work or be able to have a conversation with your relatives from other countries, just 30 minutes a day can get you on the road to speaking confidently. Make every second count – on the train or in a queue – and take the first step on your language-learning journey.

Calculation of Roundabouts: Capacity, Waiting Phenomena and ReliabilityRoundabouts have become one of the most significant traffic control measures because they are generally statistically safer and more efficient than traditional at grade intersections. This book is dedicated to the evaluation of the operating conditions of roundabouts. In five parts, it thoroughly illustrates the calculation of the capacity, including reliability, and waiting phenomena parameters, such as the times spent in the system and queue lengths.