1. Introduction to London's Volvo Double-Deckers
Denne vejledning giver en omfattende overview of the Volvo B9TL and B5LH double-decker buses, which have played a significant role in London's public transport network. Following the B7TL's production, Volvo introduced the B9TL as a quieter and more efficient successor. As the industry shifted towards sustainable transport, the B5LH hybrid model emerged, gaining substantial popularity in London.
The book details the first decade of these bus types, covering their design, operational characteristics, and impact on London's bus services, primarily operated by Transport for London (TfL) contracted companies.
This image displays the front cover of the book, featuring a red Metroline Volvo B9TL double-decker bus. The bus is branded with 'Brentford E2' as its destination and route number, and carries advertising for Ribena. The book title 'THE LONDON VOLVO B9TL & B5LH' and author 'MATTHEW WHARMBY' are prominently displayed.
2. Development History and Evolution
The development of the Volvo B9TL was a direct response to operational challenges faced by its predecessor, the B7TL, particularly concerning noise levels in urban environments. Volvo engineered the B9TL to be a leaner and quieter vehicle, which led to a resurgence in orders from London operators.
Subsequently, with the increasing emphasis on environmental sustainability and the transition from diesel to hybrid technology, Volvo introduced the B5LH. This hybrid model quickly gained acclaim and achieved significant sales in London, marking a new era for double-decker buses in the city.
3. Key Features of the Volvo B9TL
The B9TL is a low-floor double-decker chassis designed for urban operations. Its key characteristics include:
- Improved Acoustics: Engineered to address noise concerns of earlier models.
- Robust Chassis: Designed for the demanding conditions of city routes.
- Versatile Body Options: Commonly bodied by manufacturers such as Wrightbus, Alexander Dennis, and MCV, allowing for varied aesthetic and functional designs.
- Diesel Power: Primarily powered by diesel engines, representing the standard technology of its introduction period.
4. Key Features of the Volvo B5LH Hybrid
The B5LH represents Volvo's advancement into hybrid technology for double-decker buses. Its notable features include:
- Hybrid Powertrain: Combines a diesel engine with an electric motor, significantly reducing emissions and fuel consumption.
- Miljømæssige fordele: Contributes to cleaner air and reduced noise pollution in urban areas.
- Energy Recovery: Utilizes regenerative braking to recharge batteries, enhancing efficiency.
- Moderne design: Often paired with contemporary bodywork from manufacturers like Wrightbus and Alexander Dennis.
5. Operational Context in London
Both the B9TL and B5LH models have been widely adopted by various bus companies operating under contract for Transport for London (TfL). Their presence is a common sight across the capital's extensive bus network.
The B9TL served as a workhorse during the 2010s, while the B5LH quickly became a preferred choice for routes requiring more environmentally friendly vehicles, aligning with TfL's goals for a greener fleet.
6. General Technical Specifications (Overview)
While specific configurations vary by operator and bodybuilder, the Volvo B9TL and B5LH share fundamental design principles:
- Køretøjstype: Low-floor double-decker bus chassis.
- Engine Placement: Typically rear-mounted.
- Smitte: Automatisk.
- Passenger Capacity: High capacity, typical for urban double-deckers, accommodating both seated and standing passengers.
- Tilgængelighed: Designed with low-floor access to comply with modern accessibility standards.
7. About the Author and Publisher
This comprehensive guide is authored by Matthew Wharmby, a recognized author, photographer, and editor specializing in London bus history. His expertise ensures a detailed and accurate account of these significant vehicles.
The book is published by Pen and Sword Transport, known for its publications on transport history and engineering. It was released on 6. april 2020.
ISBN-10: 1526749637
ISBN-13: 978-1526749635
