Malaysia Digital MySTI

Road Lighting Classification

For road lighting the lighting criteria are selected dependant upon the class of road being lit. The class has a range of sub-classes, from the strictest to the most relaxed, and these are chosen dependant upon factors, such as typical speed of users, typical volumes of traffic flow, difficulty of the navigational task, etc.

Road Lighting Classification ME – 1

This class is intended for users of motorised vehicles on routes such as Expressway & Highway.

  • Expressway – Serve long trips and provide higher speed of 110
    km/hr.
  • Highway – Serve long to intermediate trip lengths with high
    to medium speed.

Divided highway for through traffic with full control access and all intersections are grade separated.

LUMINANCE

Lm U0 Ul SR TI
≥ 2.0 cd/m2 ≥ 0.40 ≥ 0.70 ≥ 0.50 ≤ 10%

* KEY 
    Lm – maintained average luminance, Uo – overall uniformity, Ul – longitudinal uniformity
    TI – threshold increment, SR – surround ratio

LUMINANCE

Lm U0 Ul SR TI
≥ 2.0 cd/m2 ≥ 0.40 ≥ 0.70 ≥ 0.50 ≤ 10%

* KEY 
    Lm – maintained average luminance, Uo – overall uniformity, Ul – longitudinal uniformity
    TI – threshold increment, SR – surround ratio

Road Lighting Classification ME – 2

This class is intended for users of motorised vehicles on
routes such as Primary Road.

  • Primary Road – Serve intermediate trip lengths and medium
    traveling speeds.

Major roads network within a state that usually link
up the State Capitals and District Capitals or other
Major Towns.

LUMINANCE

Lm U0 Ul SR TI
≥ 1.5 cd/m2 ≥ 0.40 ≥ 0.70 ≥ 0.50 ≤ 10%
* KEY 
    Lm – maintained average luminance, Uo – overall uniformity, Ul – longitudinal uniformity
    TI – threshold increment, SR – surround ratio

LUMINANCE

Lm U0 Ul SR TI
≥ 1.5 cd/m2 ≥ 0.40 ≥ 0.70 ≥ 0.50 ≤ 10%

* KEY 
    Lm – maintained average luminance, Uo – overall uniformity, Ul – longitudinal uniformity
    TI – threshold increment, SR – surround ratio

Road Lighting Classification ME – 3

This class is intended for users of motorised vehicles on
routes such as Secondary Road.

  • Secondary Road – Serve intermediate trip lengths with partial
    access control.

Divided highway for through traffic with full control
access and all intersections are grade separated.

LUMINANCE

Lm U0 Ul SR TI
≥ 1.0 cd/m2 ≥ 0.40 ≥ 0.70 ≥ 0.50 ≤ 15%

* KEY 
    Lm – maintained average luminance, Uo – overall uniformity, Ul – longitudinal uniformity
    TI – threshold increment, SR – surround ratio

LUMINANCE

Lm U0 Ul SR TI
≥ 2.0 cd/m2 ≥ 0.40 ≥ 0.70 ≥ 0.50 ≤ 10%

* KEY 
    Lm – maintained average luminance, Uo – overall uniformity, Ul – longitudinal uniformity
    TI – threshold increment, SR – surround ratio

Road Lighting Classification ME – 4

This class is intended for users of motorised vehicles on
routes such as Rural Area Road (Minor Road).

  • Minor Road – Non-traffic with a short trip lengths and are usually
    with partial or no access control.

LUMINANCE

Lm U0 Ul SR TI
≥ 0.5 cd/m2 ≥ 0.40 ≥ 0.60 ≥ 0.60 ≤ 15%
* KEY 
    Lm – maintained average luminance, Uo – overall uniformity, Ul – longitudinal uniformity
    TI – threshold increment, SR – surround ratio

LUMINANCE

Lm U0 Ul SR TI
≥ 0.5 cd/m2 ≥ 0.40 ≥ 0.60 ≥ 0.60 ≤ 15%

* KEY 
    Lm – maintained average luminance, Uo – overall uniformity, Ul – longitudinal uniformity
    TI – threshold increment, SR – surround ratio