Jalan Besar is the name of a street in the northeastern part of the Central Area in Singapore, which is its central business district.
Jalan Besar only appeared in the 1880s, when the Municipality constructed it through nipah land and called it Jalan Besar, meaning "big or wide road" in Malay.
A peculiarity of the street names in Jalan Besar is that many bear the names of World War I British generals and admirals and two French generals — Allenby, Kitchener, French, Maude, Jellicoe, Tyrwhitt, Foch, Sturdee, Beatty and Petain.
JalanKayu is a name of a street situated within the Sengkang Planning Area in the North-East Region of Singapore, under the urban planning scheme of the Urban Redevelopment Authority.
JalanKayu was built in 1928 when the first Royal Air Force base outside the United Kingdom was established in Singapore, in the northern part of the island.
Another version is that the muddy laterite roads leading to the rubber estates in the area were made passable due to logs of wood that used to cover the muddy roads, hence the term in Malay jalankayu.