STREETSCAPE GUIDANCE

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HOME INTRODUCTION PART A A vision for London’s streets PART B From strategy to delivery PART C New measures for new challenges PART D Balancing priorities PART F Appendix PART E Physical design and materials SECTION 6 Introduction SECTION 7 High quality footways SECTION 8 Carriageways SECTION 9 Crossings SECTION 10 Kerbside activity SECTION 11 Footway amenities SECTION 12 Safety and functionality SECTION 13 Street environment SECTION 14 Transport interchanges Streetscape Guidance Design of unit • The material and finish of signposts should coordinate with other street furniture • The sign face should be black when a message is not being displayed • Controller cabinets should be located within 30 metres of the VMS display and should be black, positioned at the back of the footway or adjacent to the VMS • Cantilevered signs are preferred to two post footway mounted signs on high roads, to minimise the number of poles used • Gantry signs are large, overhead structures that should only be considered on high capacity arterial roads. The overhead position is more readily visible and legible for high speed roads; however, the large size of the structure is only appropriate for wide carriageway dominant settings • Consideration should be given to combining VMS with electronic advertising boards with reference to statutory limitations on the use of VMS signs for this purpose • Footway mounted sign heights should be increased to 3000mm where signs are adjacent to cycle or equestrian routes The design of the unit and the mounting position determines the separation standards for placement of VMS on the network: Mount Height Context Overhead gantry sign Minimum 5,500mm from carriageway surface Arterial routes only Cantilevered sign Minimum 2,400mm from footway surface, 600mm from the kerb edge to any point on the sign Arterial, high roads, city hubs Verge sign/footway mounted Minimum 2,400mm from footway surface VMS placement standards Minimum distance between two verge mounted signs Minimum distance between two gantry mounted signs [Part E – Physical design and materials] Safety and functionality 264 Arterial, high roads, city hubs 200 metres 300 metres
HOME INTRODUCTION PART A A vision for London’s streets PART B From strategy to delivery PART C New measures for new challenges PART D Balancing priorities PART F Appendix PART E Physical design and materials SECTION 6 Introduction SECTION 7 High quality footways SECTION 8 Carriageways SECTION 9 Crossings SECTION 10 Kerbside activity SECTION 11 Footway amenities SECTION 12 Safety and functionality SECTION 13 Street environment SECTION 14 Transport interchanges Streetscape Guidance [Part E – Physical design and materials] Safety and functionality 265 Types of display Three types of display may be considered for use on the TLRN, with certain pros and cons for each medium. It is possible on larger signs to combine technologies within the same sign. Designers should select the display type based on how the sign is anticipated to be used, the type of information to be displayed, and if a wide range of information is required with symbols: • Electro-mechanical – rotating planks with two or three faces or prisms can be used to give additional versatility to a standard fixed-faced traffic sign • Reflective flip-disk – matrix of disks, one side black, the other fluorescent, flipped magnetically by electrical current. These signs are well suited to showing combinations of letters or symbols as a message • Light-emitting – fibre optic or light-emitting diode technologies. The major advantage of these signs is that a greater range of messages can be displayed than for reflective technology signs Sign design considerations Sign designers need to consider a number of factors including: • Sign sizes • Character height • Legibility • Contrast and viewing angle • Ambient illumination levels and expected approach speeds Messaging • Messages, symbols and abbreviations used on VMS shall conform to Regulation 58 and Schedule 15 of the TSRGD • Standard messaging shall be from the Transport alphabet typeface prescribed in Regulation 13 and illustrat`ed in Schedule 13 of the TSRGD • Signs should never contain more than 10 words nor provide conflicting messages on any one sign • When VMS are used as warning signs, it is usual for them to be fitted with four amberflashing lanterns, subject to the provisions of Regulation 58 • Where a second sign is provided on a central reservation, it should only ever duplicate the message displayed on the verge sign Authorisation The appearance and legend of VMS signs should conform to Regulation 58 and Schedule 15 of the TSRGD. Sign designs and formats not conforming to the TSRGD are required to be authorised by the Secretary of State. Applications for authorisation should in the first instance be addressed to the relevant government regional office or Highways England for trunk roads in England. Additional information Legislation: Traffic Signs Regulations and General Directions (TSRGD) (Regulation 58) Department for Transport, Highways Agency: Design Manual for Roads and Bridges (DMRB), Volume 8, Section 2, Part 2 TD 33/05 The Use of Variable Message Signs on All-Purpose and Motorway Trunk Roads
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STREETSCAPE GUIDANCE

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