3.2.1.1. Roads

The generic word ‘road’ used to encompass all land vehicular ways is derived from the Old English word ‘rad’, which means “to ride”. However, the term highway predates it, back to the elevated Romans roads which created a mound in the centre and ditches on the side. It is used to refer to major roadways that connect several rural and urban spaces and is characterised by various controlled points of entry and exits for traffic.

Roads are essential pathways for vehicles. The word 'road' comes from Old English, indicating its historical use for riding. Romans designed early highways to improve travel by raising the middle and digging trenches. Today, we use 'road' for all types of vehicle paths, but 'highway' specifically refers to larger, more important routes.

Think of a road as a river for cars. Just as a river provides a pathway for boats to move from one place to another, roads allow vehicles to travel across cities and landscapes. Major highways are like the main river channel, while smaller roads are like tributaries feeding into it.

Road networks follow a system of hierarchy in their capacity and capabilities. Most roads worldwide are conventional, undivided two-way; however, there are divided roads such as; expressways, having minor at-grade intersections; freeways, having no at-grade intersections, collectively called motorways in the UK. Functionally roads are classified as: Highways - the major roads between regions; Arterial roads – that carry through traffic from adjacent areas and are major roads within a region; Collector, distributor and feeder roads – that carry only through traffic from a certain area perimeter; and local streets – that do not carry through traffic but only serve adjacent properties.

Roads are organized by importance and function. Most daily roads allow traffic in both directions. Highways connect large areas, arterial roads link major destinations, while collector roads gather traffic from neighborhoods. Local streets serve immediate areas. Understanding these classifications can help in urban planning and traffic management.

Imagine a city as a web of roads. Highways are the main strands of the web that connect the largest points. Arterial roads branch off to nearby destinations, just like smaller threads lead to specific parts of the web. Meanwhile, local streets are like tightening knots where everyone can reach their home.

The earliest records of animal trodden paths used by man have been dated back to 6000 BCE, with evidence on first constructed road dating 4000BCE at Ur, present day Iran. Oldest existing paved road was built by the Minoans on the island of Crete, made of layers of sandstone bound by clay-gypsum mortar. The first steam locomotive to carry passengers began operations between Stockton and Darlington in 1825.

Road building has ancient roots, dating back to when humans first created paths for animals. Evidence shows the first constructed roads emerged around 4000 BCE in ancient civilizations like Ur. The Minoans built some of the earliest paved roads, demonstrating architectural progress. Similarly, railroads transformed transportation in the 19th century with the introduction of steam locomotives.

Think of roads like the early paths in a forest. Just as animals first followed their trails to find food before paths became more structured, humans created roads for convenience. Over time, these primitive paths evolved into well-paved highways and railroads that allowed for quicker travel and transportation of goods.

Road design is an exceedingly important aspect of national and regional planning, especially in the context of urban connectivity and the population, commerce, industry and transportation needs of the community. Estimating traffic on a route as well as conducting civil surveys to establish the site conditions are integral to successful road system planning and design.

Designing roads is crucial for effective urban planning. Planners must analyze traffic flow and local needs to create functional roads. Surveys help understand the land, determine safety measures, and ensure the roads meet the community's needs for commerce and travel.

Imagine planning a party for your friends. You'd think about how many guests are coming (traffic), what the space looks like (site conditions), and how to make it enjoyable for everyone (community needs). Similarly, road planners gather data and design roads to ensure they work well for everyone using them.

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