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obtained. The results of the survey should bring out the VDF for each truck type<br />
(axle configuration, if the calculated VDF is found to be below the national<br />
average, then national average shall be used. Furthermore, the data from axle<br />
load surveys should be analysed to bring out the Gross Vehicle Weight (GVW)<br />
and Single Axle Load (SAL) Distributions by truck type (axle configuration).<br />
4. The Consultant shall ascertain from local enquiries about the exceptional live<br />
loads that have used the highway in the past in order to assess the suitability of<br />
existing bridges to carry such loads.<br />
4.9.6. Speed-Delay Surveys<br />
The Consultants shall carry out appropriate field studies such as moving car<br />
survey to determine running speed and journey speed. The data should be<br />
analysed to identify sections with typical traffic flow problems and congestion.<br />
The objective of the survey would be to recommend suitable measures for<br />
segregation of local traffic, smooth flow of through traffic and traffic safety.<br />
These measures would include the provision of bypasses, under-passes, flyovers,<br />
interchanges, grade-separated intersections and service roads.<br />
4.9.7 Pedestrian / animal cross traffic surveys<br />
These may be conducted to determine if provision of viaduct for<br />
pedestrians/animals is necessary to improve the traffic safety.<br />
4.9.8 Truck Terminal Surveys<br />
The data derived from the O-D, speed-delay, other surveys and also<br />
supplementary surveys should be analysed to assess requirements for present<br />
and future development of truck terminals at suitable locations enroute.<br />
4.10. Traffic Demand Estimates<br />
1. The Consultants shall make traffic demand estimates and establish possible<br />
traffic growth rates in respect of all categories of vehicles, taking into account<br />
the past trends, annual population and real per capita growth rate, elasticity of<br />
transport demand in relation to income and estimated annual production<br />
increase. The other aspects including socio-economic development plans and<br />
the land use patterns of the region having impact on the traffic growth, the<br />
projections of vehicle manufacturing industry in the country, development<br />
plans for the other modes of transport, O-D and commodity movement<br />
behaviour should also be taken into account while working out the traffic<br />
demand estimates.<br />
2. The values of elasticity of transport demand shall be based on the prevailing<br />
practices in the country. The Consultants shall give complete background<br />
including references for selecting the value of transport demand elasticity.<br />
3. It is envisaged that the 2/4-laning of the project road sections covered under<br />
this TOR would be completed and opened to traffic after 3 years. The traffic<br />
demand estimates shall be done for a further period of 30 years from<br />
completion of four/two lane. The demand estimates shall be done assuming